diff --git a/src/Mods/Element/Common/BaseElement.php b/src/Mods/Element/Common/BaseElement.php
index ece9ec7..c20b795 100644
--- a/src/Mods/Element/Common/BaseElement.php
+++ b/src/Mods/Element/Common/BaseElement.php
@@ -12,6 +12,8 @@
 
 namespace Slub\Mods\Element\Common;
 
+use Slub\Mods\Element\Xml\Element;
+
 /**
  * MODS metadata element class for the 'php-mods-reader' library.
  *
@@ -55,7 +57,7 @@ public function getValue(): string
     /**
      * Get the string value of attribute.
      *
-     * @access public
+     * @access protected
      *
      * @param string $attribute name
      *
@@ -76,7 +78,7 @@ protected function getStringAttribute($attribute): string
     /**
      * Get the int value of attribute.
      *
-     * @access public
+     * @access protected
      *
      * @param string $attribute name
      *
@@ -93,4 +95,85 @@ protected function getIntAttribute($attribute): int
         }
         return 0;
     }
-}
\ No newline at end of file
+
+    /**
+     * Get the array of the matching elements.
+     *
+     * @access protected
+     *
+     * @param string $xpath The XPath for metadata search
+     *
+     * @return AuthorityLanguageElement[]
+     */
+    protected function getAuthorityLanguageElements(string $xpath): array
+    {
+        $elements = [];
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $elements[] = new AuthorityLanguageElement($value);
+            }
+        }
+        return $elements;
+    }
+
+    /**
+     * Get the the array of the matching elements.
+     *
+     * @access protected
+     *
+     * @param string $xpath The XPath for metadata search
+     *
+     * @return DateElement[]
+     */
+    protected function getDateElements(string $xpath): array
+    {
+        $elements = [];
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $elements[] = new DateElement($value);
+            }
+        }
+        return $elements;
+    }
+
+    /**
+     * Get the matching element or null if there is not match.
+     *
+     * @access protected
+     *
+     * @param string $xpath The XPath for metadata search
+     *
+     * @return ?LanguageElement
+     */
+    protected function getLanguageElement(string $xpath): ?LanguageElement
+    {
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            return new LanguageElement($element->getValues()[0]);
+        }
+        return null;
+    }
+
+    /**
+     * Get the array of the matching elements.
+     *
+     * @access protected
+     *
+     * @param string $xpath The XPath for metadata search
+     *
+     * @return LanguageElement[]
+     */
+    protected function getLanguageElements(string $xpath): array
+    {
+        $elements = [];
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $elements[] = new LanguageElement($value);
+            }
+        }
+        return $elements;
+    }
+}
diff --git a/src/Mods/Element/OriginInfo.php b/src/Mods/Element/OriginInfo.php
index d4b285a..0ea781f 100644
--- a/src/Mods/Element/OriginInfo.php
+++ b/src/Mods/Element/OriginInfo.php
@@ -24,9 +24,12 @@
 use Slub\Mods\Element\Specific\OriginInfo\Edition;
 use Slub\Mods\Element\Specific\OriginInfo\Frequency;
 use Slub\Mods\Element\Specific\OriginInfo\Issuance;
+use Slub\Mods\Element\Specific\OriginInfo\Place;
+use Slub\Mods\Element\Xml\Element;
 
 /**
  * OriginInfo MODS metadata element class for the 'php-mods-reader' library.
+ * @see https://www.loc.gov/standards/mods/userguide/origininfo.html
  *
  * @access public
  */
@@ -34,84 +37,6 @@ class OriginInfo extends BaseElement
 {
     use LanguageAttribute, IdAttribute, AltRepGroupAttribute, DisplayLabelAttribute;
 
-    /**
-     * @access private
-     * @var array
-     */
-    private array $places;
-
-    /**
-     * @access private
-     * @var Agent
-     */
-    private Agent $agent;
-
-    /**
-     * @access private
-     * @var DateElement
-     */
-    private DateElement $dateIssued;
-
-    /**
-     * @access private
-     * @var DateElement
-     */
-    private DateElement $dateCreated;
-
-    /**
-     * @access private
-     * @var DateElement
-     */
-    private DateElement $dateCaptured;
-
-    /**
-     * @access private
-     * @var DateElement
-     */
-    private DateElement $dateValid;
-
-    /**
-     * @access private
-     * @var DateElement
-     */
-    private DateElement $dateModified;
-
-    /**
-     * @access private
-     * @var DateElement
-     */
-    private DateElement $copyrightDate;
-
-    /**
-     * @access private
-     * @var DateOther
-     */
-    private DateOther $dateOther;
-
-    /**
-     * @access private
-     * @var DisplayDate
-     */
-    private DisplayDate $displayDate;
-
-    /**
-     * @access private
-     * @var Edition
-     */
-    private Edition $edition;
-
-    /**
-     * @access private
-     * @var Issuance
-     */
-    private Issuance $issuance;
-
-    /**
-     * @access private
-     * @var Frequency
-     */
-    private Frequency $frequency;
-
     /**
      * This extracts the essential MODS metadata from XML
      *
@@ -124,24 +49,11 @@ class OriginInfo extends BaseElement
     public function __construct(\SimpleXMLElement $xml)
     {
         parent::__construct($xml);
-
-        $this->places = [];
-        $this->agent = new Agent($xml);
-        $this->dateIssued = new DateElement($xml);
-        $this->dateCreated = new DateElement($xml);
-        $this->dateCaptured = new DateElement($xml);
-        $this->dateValid = new DateElement($xml);
-        $this->dateModified = new DateElement($xml);
-        $this->copyrightDate = new DateElement($xml);
-        $this->dateOther = new DateOther($xml);
-        $this->displayDate = new DisplayDate($xml);
-        $this->edition = new Edition($xml);
-        $this->issuance = new Issuance($xml);
-        $this->frequency = new Frequency($xml);
     }
 
     /**
-     * Get the value of eventType
+     * Get the value of the 'eventType' attribute.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#eventType
      *
      * @access public
      *
@@ -153,7 +65,8 @@ public function getEventType(): string
     }
 
     /**
-     * Get the value of eventTypeURI
+     * Get the value of the 'eventTypeURI' attribute.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#eventTypeURI
      *
      * @access public
      *
@@ -165,158 +78,253 @@ public function getEventTypeURI(): string
     }
 
     /**
-     * Get the value of places
+     * Get the array of the <place> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#place
      *
      * @access public
      *
-     * @return array
+     * @param string $query The XPath query for metadata search
+     *
+     * @return Place[]
      */
-    public function getPlaces(): array
+    public function getPlaces(string $query = ''): array
     {
-        return $this->places;
+        $places = [];
+        $xpath = './mods:place' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $places[] = new Place($value);
+            }
+        }
+        return $places;
     }
 
     /**
-     * Get the value of agent
+     * Get the array of the <agent> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#agent
      *
      * @access public
      *
-     * @return Agent
+     * @param string $query The XPath query for metadata search
+     *
+     * @return Agent[]
      */
-    public function getAgent(): Agent
+    public function getAgents(string $query = ''): array
     {
-        return $this->agent;
+        $agents = [];
+        $xpath = './mods:agent' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $agents[] = new Agent($value);
+            }
+        }
+        return $agents;
     }
 
     /**
-     * Get the value of dateIssued
+     * Get the array of the <dateIssued> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#dateissued
      *
      * @access public
      *
-     * @return DateElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return DateElement[]
      */
-    public function getDateIssued(): DateElement
+    public function getIssuedDates(string $query = ''): array
     {
-        return $this->dateIssued;
+        return $this->getDateElements('./mods:dateIssued' . $query);
     }
 
     /**
-     * Get the value of dateCreated
+     * Get the array of the <dateCreated> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#datecreated
      *
      * @access public
      *
-     * @return DateElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return DateElement[]
      */
-    public function getDateCreated(): DateElement
+    public function getCreatedDates(string $query = ''): array
     {
-        return $this->dateCreated;
+        return $this->getDateElements('./mods:dateCreated' . $query);
     }
 
     /**
-     * Get the value of dateCaptured
+     * Get the the array of the <dateCaptured> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#datecaptured
      *
      * @access public
      *
-     * @return DateElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return DateElement[]
      */
-    public function getDateCaptured(): DateElement
+    public function getCapturedDates(string $query = ''): array
     {
-        return $this->dateCaptured;
+        return $this->getDateElements('./mods:dateCaptured' . $query);
     }
 
     /**
-     * Get the value of dateValid
+     * Get the array of the <dateValid> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#datevalid
      *
      * @access public
      *
-     * @return DateElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return DateElement[]
      */
-    public function getDateValid(): DateElement
+    public function getValidDates(string $query = ''): array
     {
-        return $this->dateValid;
+        return $this->getDateElements('./mods:dateValid' . $query);
     }
 
     /**
-     * Get the value of dateModified
+     * Get the array of the <dateModified> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#datemodified
      *
      * @access public
      *
-     * @return DateElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return DateElement[]
      */
-    public function getDateModified(): DateElement
+    public function getModifiedDates(string $query = ''): array
     {
-        return $this->dateModified;
+        return $this->getDateElements('./mods:dateModified' . $query);
     }
 
     /**
-     * Get the value of copyrightDate
+     * Get the array of the <copyrightDate> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#copyrightdate
      *
      * @access public
      *
-     * @return DateElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return DateElement[]
      */
-    public function getCopyrightDate(): DateElement
+    public function getCopyrightDates(string $query = ''): array
     {
-        return $this->copyrightDate;
+        return $this->getDateElements('./mods:copyrightDate' . $query);
     }
 
     /**
-     * Get the value of dateOther
+     * Get the array of the <dateOther> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#dateother
      *
      * @access public
      *
-     * @return DateOther
+     * @param string $query The XPath query for metadata search
+     *
+     * @return DateOther[]
      */
-    public function getDateOther(): DateOther
+    public function getOtherDates(string $query = ''): array
     {
-        return $this->dateOther;
+        $otherDates = [];
+        $xpath = './mods:dateOther' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $otherDates[] = new DateOther($value);
+            }
+        }
+        return $otherDates;
     }
 
     /**
-     * Get the value of displayDate
+     * Get the array of the <displayDate> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#displayDate
      *
      * @access public
      *
-     * @return DisplayDate
+     * @param string $query The XPath query for metadata search
+     *
+     * @return DisplayDate[]
      */
-    public function getDisplayDate(): DisplayDate
+    public function getDisplayDates(string $query = ''): array
     {
-        return $this->displayDate;
+        $displayDates = [];
+        $xpath = './mods:displayDate' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $displayDates[] = new DisplayDate($value);
+            }
+        }
+        return $displayDates;
     }
 
     /**
-     * Get the value of edition
+     * Get the array of the <edition> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#edition
      *
      * @access public
      *
-     * @return Edition
+     * @param string $query The XPath query for metadata search
+     *
+     * @return Edition[]
      */
-    public function getEdition(): Edition
+    public function getEditions(string $query = ''): array
     {
-        return $this->edition;
+        $editions = [];
+        $xpath = './mods:edition' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $editions[] = new Edition($value);
+            }
+        }
+        return $editions;
     }
 
     /**
-     * Get the value of issuance
+     * Get the array of the <issuance> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#issuance
      *
      * @access public
      *
-     * @return Issuance
+     * @param string $query The XPath query for metadata search
+     *
+     * @return Issuance[]
      */
-    public function getIssuance(): Issuance
+    public function getIssuances(string $query = ''): array
     {
-        return $this->issuance;
+        $issuances = [];
+        $xpath = './mods:issuance' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $issuances[] = new Issuance($value);
+            }
+        }
+        return $issuances;
     }
 
     /**
-     * Get the value of frequency
+     * Get the array of the <frequency> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#frequency
      *
      * @access public
      *
-     * @return Frequency
+     * @param string $query The XPath query for metadata search
+     *
+     * @return Frequency[]
      */
-    public function getFrequency(): Frequency
+    public function getFrequencies(string $query = ''): array
     {
-        return $this->frequency;
+        $frequencies = [];
+        $xpath = './mods:frequency' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $frequencies[] = new Frequency($value);
+            }
+        }
+        return $frequencies;
     }
 }
diff --git a/src/Mods/Element/RecordInfo.php b/src/Mods/Element/RecordInfo.php
index f5c481e..fdd1cb9 100644
--- a/src/Mods/Element/RecordInfo.php
+++ b/src/Mods/Element/RecordInfo.php
@@ -36,12 +36,6 @@ class RecordInfo extends BaseElement
 {
     use LanguageAttribute, IdAttribute, AltRepGroupAttribute, DisplayLabelAttribute, UsageAttribute;
 
-    /**
-     * @access private
-     * @var AuthorityLanguageElement
-     */
-    private AuthorityLanguageElement $descriptionStandard;
-
     /**
      * This extracts the essential MODS metadata from XML
      *
@@ -148,14 +142,14 @@ public function getRecordOrigins(string $query = ''): array
     }
 
     /**
-     * Get the array of the <recordIdentifier> elements.
-     * @see https://www.loc.gov/standards/mods/userguide/recordinfo.html#recordidentifier
+     * Get the array of the <recordInfoNote> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/recordinfo.html#recordinfonote
      *
      * @access public
      *
      * @param string $query The XPath query for metadata search
      *
-     * @return RecordIdentifier[]
+     * @return RecordInfoNote[]
      */
     public function getRecordInfoNotes(string $query = ''): array
     {
@@ -207,46 +201,4 @@ public function getDescriptionStandards(string $query = ''): array
     {
         return $this->getAuthorityLanguageElements('./mods:descriptionStandard' . $query);
     }
-
-    /**
-     * Get the array of the matching elements.
-     *
-     * @access public
-     *
-     * @param string $xpath The XPath for metadata search
-     *
-     * @return AuthorityLanguageElement[]
-     */
-    private function getAuthorityLanguageElements(string $xpath): array
-    {
-        $elements = [];
-        $element = new Element($this->xml, $xpath);
-        if ($element->exists()) {
-            foreach ($element->getValues() as $value) {
-                $elements[] = new AuthorityLanguageElement($value);
-            }
-        }
-        return $elements;
-    }
-
-    /**
-     * Get the array of the matching elements.
-     *
-     * @access public
-     *
-     * @param string $xpath The XPath for metadata search
-     *
-     * @return DateElement[]
-     */
-    private function getDateElements(string $xpath): array
-    {
-        $elements = [];
-        $element = new Element($this->xml, $xpath);
-        if ($element->exists()) {
-            foreach ($element->getValues() as $value) {
-                $elements[] = new DateElement($value);
-            }
-        }
-        return $elements;
-    }
 }
diff --git a/src/Mods/Element/Specific/OriginInfo/Place.php b/src/Mods/Element/Specific/OriginInfo/Place.php
index bfb0f3f..7767724 100644
--- a/src/Mods/Element/Specific/OriginInfo/Place.php
+++ b/src/Mods/Element/Specific/OriginInfo/Place.php
@@ -15,10 +15,12 @@
 use Slub\Mods\Attribute\Common\Miscellaneous\SuppliedAttribute;
 use Slub\Mods\Element\Common\BaseElement;
 use Slub\Mods\Element\Specific\OriginInfo\Place\Cartographics;
-use Slub\Mods\Element\Specific\OriginInfo\Place\PlaceIdentifier;
+use Slub\Mods\Element\Specific\OriginInfo\Place\PlaceTerm;
+use Slub\Mods\Element\Xml\Element;
 
 /**
  * Place MODS metadata element class for the 'php-mods-reader' library.
+ * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#place
  *
  * @access public
  */
@@ -26,24 +28,6 @@ class Place extends BaseElement
 {
     use SuppliedAttribute;
 
-    /**
-     * @access private
-     * @var array
-     */
-    private array $placeTerms;
-
-    /**
-     * @access private
-     * @var PlaceIdentifier
-     */
-    private PlaceIdentifier $placeIdentifier;
-
-    /**
-     * @access private
-     * @var Cartographics
-     */
-    private Cartographics $cartographics;
-
     /**
      * This extracts the essential MODS metadata from XML
      *
@@ -59,38 +43,71 @@ public function __construct(\SimpleXMLElement $xml)
     }
 
     /**
-     * Get the value of placeTerms
+     * Get the array of the <placeTerms> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#placeterm
      *
      * @access public
      *
-     * @return array
+     * @param string $query The XPath query for metadata search
+     *
+     * @return PlaceTerm[]
      */
-    public function getPlaceTerms(): array
+    public function getPlaceTerms(string $query = ''): array
     {
-        return $this->placeTerms;
+        $placeTerms = [];
+        $xpath = './mods:placeTerm' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $placeTerms[] = new PlaceTerm($value);
+            }
+        }
+        return $placeTerms;
     }
 
     /**
-     * Get the value of placeIdentifier
+     * Get the array of the <placeIdentifier> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#placeidentifier
      *
      * @access public
      *
-     * @return PlaceIdentifier
+     * @param string $query The XPath query for metadata search
+     *
+     * @return BaseElement[]
      */
-    public function getPlaceIdentifier(): PlaceIdentifier
+    public function getPlaceIdentifiers(string $query = ''): array
     {
-        return $this->placeIdentifier;
+        $placeIdentifiers = [];
+        $xpath = './mods:placeIdentifier' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $placeIdentifiers[] = new BaseElement($value);
+            }
+        }
+        return $placeIdentifiers;
     }
 
     /**
-     * Get the value of cartographics
+     * Get the array of the <cartographics> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#oiplacecartographics
      *
      * @access public
      *
-     * @return Cartographics
+     * @param string $query The XPath query for metadata search
+     *
+     * @return Cartographics[]
      */
-    public function getCartographics(): Cartographics
+    public function getCartographics(string $query = ''): array
     {
-        return $this->cartographics;
+        $cartographics = [];
+        $xpath = './mods:cartographics' . $query;
+        $element = new Element($this->xml, $xpath);
+        if ($element->exists()) {
+            foreach ($element->getValues() as $value) {
+                $cartographics[] = new Cartographics($value);
+            }
+        }
+        return $cartographics;
     }
 }
diff --git a/src/Mods/Element/Specific/OriginInfo/Place/Cartographics.php b/src/Mods/Element/Specific/OriginInfo/Place/Cartographics.php
index 29484fc..c24ee37 100644
--- a/src/Mods/Element/Specific/OriginInfo/Place/Cartographics.php
+++ b/src/Mods/Element/Specific/OriginInfo/Place/Cartographics.php
@@ -18,6 +18,7 @@
 
 /**
  * Cartographics MODS metadata element class for the 'php-mods-reader' library.
+ * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#oiplacecartographics
  *
  * @access public
  */
@@ -25,30 +26,6 @@ class Cartographics extends BaseElement
 {
     use AuthorityAttribute;
 
-    /**
-     * @access private
-     * @var array<LanguageElement>
-     */
-    private array $coordinates;
-
-    /**
-     * @access private
-     * @var LanguageElement
-     */
-    private LanguageElement $projection;
-
-    /**
-     * @access private
-     * @var LanguageElement
-     */
-    private LanguageElement $scale;
-
-    /**
-     * @access private
-     * @var LanguageElement
-     */
-    private LanguageElement $cartographicExtension;
-
     /**
      * This extracts the essential MODS metadata from XML
      *
@@ -61,57 +38,63 @@ class Cartographics extends BaseElement
     public function __construct(\SimpleXMLElement $xml)
     {
         parent::__construct($xml);
-
-        $this->projection = new LanguageElement($xml);
-        $this->scale = new LanguageElement($xml);
-        $this->cartographicExtension = new LanguageElement($xml);
     }
 
     /**
-     * Get the value of coordinates
+     * Get the value of the <projection> element.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#projection
      *
      * @access public
      *
-     * @return array
+     * @return ?LanguageElement
      */
-    public function getCoordinates(): array
+    public function getProjection(string $query = ''): ?LanguageElement
     {
-        return $this->coordinates;
+        return $this->getLanguageElement('./mods:projection' . $query);
     }
 
     /**
-     * Get the value of projection
+     * Get the value of the <scale> element.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#scale
      *
      * @access public
      *
-     * @return LanguageElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return ?LanguageElement
      */
-    public function getProjection(): LanguageElement
+    public function getScale(string $query = ''): ?LanguageElement
     {
-        return $this->projection;
+        return $this->getLanguageElement('./mods:scale' . $query);
     }
 
     /**
-     * Get the value of scale
+     * Get the array of the <coordinates> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#coordinates
      *
      * @access public
      *
-     * @return LanguageElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return LanguageElement[]
      */
-    public function getScale(): LanguageElement
+    public function getCoordinates(string $query = ''): array
     {
-        return $this->scale;
+        return $this->getLanguageElements('./mods:coordinates' . $query);
     }
 
     /**
-     * Get the value of cartographicExtension
+     * Get the array of the <cartographicExtension> elements.
+     * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#cartographicextension
      *
      * @access public
      *
-     * @return LanguageElement
+     * @param string $query The XPath query for metadata search
+     *
+     * @return LanguageElement[]
      */
-    public function getCartographicExtension(): LanguageElement
+    public function getCartographicExtensions(string $query = ''): array
     {
-        return $this->cartographicExtension;
+        return $this->getLanguageElements('./mods:cartographicExtension' . $query);
     }
-}
\ No newline at end of file
+}
diff --git a/src/Mods/Element/Specific/OriginInfo/Place/PlaceIdentifier.php b/src/Mods/Element/Specific/OriginInfo/Place/PlaceIdentifier.php
deleted file mode 100644
index 656a46a..0000000
--- a/src/Mods/Element/Specific/OriginInfo/Place/PlaceIdentifier.php
+++ /dev/null
@@ -1,38 +0,0 @@
-<?php
-
-/**
- * Copyright (C) 2024 Saxon State and University Library Dresden
- *
- * This file is part of the php-mods-reader.
- *
- * @license GNU General Public License version 3 or later.
- * For the full copyright and license information, please read the
- * LICENSE.txt file that was distributed with this source code.
- */
-
-namespace Slub\Mods\Element\Specific\OriginInfo\Place;
-
-use Slub\Mods\Element\Common\BaseElement;
-
-/**
- * PlaceIdentifier MODS metadata element class for the 'php-mods-reader' library.
- *
- * @access public
- */
-class PlaceIdentifier extends BaseElement
-{
-
-    /**
-     * This extracts the essential MODS metadata from XML
-     *
-     * @access public
-     *
-     * @param \SimpleXMLElement $xml The XML to extract the metadata from
-     *
-     * @return void
-     */
-    public function __construct(\SimpleXMLElement $xml)
-    {
-        parent::__construct($xml);
-    }
-}
\ No newline at end of file
diff --git a/src/Mods/Element/Specific/OriginInfo/Place/PlaceTerm.php b/src/Mods/Element/Specific/OriginInfo/Place/PlaceTerm.php
index 479ec6b..370259a 100644
--- a/src/Mods/Element/Specific/OriginInfo/Place/PlaceTerm.php
+++ b/src/Mods/Element/Specific/OriginInfo/Place/PlaceTerm.php
@@ -19,6 +19,7 @@
 
 /**
  * PlaceTerm MODS metadata element class for the 'php-mods-reader' library.
+ * @see https://www.loc.gov/standards/mods/userguide/origininfo.html#placeterm
  *
  * @access public
  */
diff --git a/tests/Mods/ModsReaderTest.php b/tests/Mods/ModsReaderTest.php
index 1a249c0..b34bed2 100644
--- a/tests/Mods/ModsReaderTest.php
+++ b/tests/Mods/ModsReaderTest.php
@@ -671,8 +671,19 @@ public function testGetOriginInfosForBookDocument()
         self::assertNotEmpty($originInfos[0]->getValue());
         self::assertNotEmpty($originInfos[0]->getEventType());
         self::assertEquals('publication', $originInfos[0]->getEventType());
-
-        // TODO: implement reading of elements
+        self::assertNotEmpty($originInfos[0]->getPlaces());
+        self::assertEquals(2, count($originInfos[0]->getPlaces()));
+        $placeTerms = $originInfos[0]->getPlaces()[0]->getPlaceTerms();
+        self::assertNotEmpty($placeTerms);
+        self::assertEquals('marccountry', $placeTerms[0]->getAuthority());
+        self::assertEquals('code', $placeTerms[0]->getType());
+        self::assertEquals('nyu', $placeTerms[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getIssuedDates());
+        self::assertEquals(2, count($originInfos[0]->getIssuedDates()));
+        self::assertEquals('marc', $originInfos[0]->getIssuedDates()[0]->getEncoding());
+        self::assertEquals('2000', $originInfos[0]->getIssuedDates()[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getIssuances());
+        self::assertEquals('monographic', $originInfos[0]->getIssuances()[0]->getValue());
     }
 
     public function testGetOriginInfosByQueryForBookDocument()
@@ -683,8 +694,17 @@ public function testGetOriginInfosByQueryForBookDocument()
         self::assertNotEmpty($originInfos[0]->getValue());
         self::assertNotEmpty($originInfos[0]->getEventType());
         self::assertEquals('redaction', $originInfos[0]->getEventType());
-
-        // TODO: implement reading of elements
+        self::assertNotEmpty($originInfos[0]->getPlaces());
+        self::assertEquals(2, count($originInfos[0]->getPlaces()));
+        $placeTerms = $originInfos[0]->getPlaces()[1]->getPlaceTerms();
+        self::assertNotEmpty($placeTerms);
+        self::assertEquals('text', $placeTerms[0]->getType());
+        self::assertEquals('Ithaca, N.Y', $placeTerms[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getIssuedDates());
+        self::assertEquals(2, count($originInfos[0]->getIssuedDates()));
+        self::assertEquals('marc', $originInfos[0]->getIssuedDates()[0]->getEncoding());
+        self::assertEquals('1999', $originInfos[0]->getIssuedDates()[0]->getValue());
+        self::assertEmpty($originInfos[0]->getIssuances());
     }
 
     public function testGetNoOriginInfosByQueryForBookDocument()
@@ -701,8 +721,25 @@ public function testGetOriginInfosForSerialDocument()
         self::assertNotEmpty($originInfos[0]->getValue());
         self::assertNotEmpty($originInfos[0]->getEventType());
         self::assertEquals('publication', $originInfos[0]->getEventType());
-
-        // TODO: implement reading of elements
+        self::assertNotEmpty($originInfos[0]->getPlaces());
+        self::assertEquals(2, count($originInfos[0]->getPlaces()));
+        $placeTerms = $originInfos[0]->getPlaces()[0]->getPlaceTerms();
+        self::assertNotEmpty($placeTerms);
+        self::assertEquals('marccountry', $placeTerms[0]->getAuthority());
+        self::assertEquals('code', $placeTerms[0]->getType());
+        self::assertEquals('abc', $placeTerms[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getIssuedDates());
+        self::assertEquals(3, count($originInfos[0]->getIssuedDates()));
+        self::assertEquals('marc', $originInfos[0]->getIssuedDates()[0]->getEncoding());
+        self::assertEquals('start', $originInfos[0]->getIssuedDates()[0]->getPoint());
+        self::assertEquals('2002', $originInfos[0]->getIssuedDates()[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getIssuances());
+        self::assertEquals('serial', $originInfos[0]->getIssuances()[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getFrequencies());
+        self::assertEquals(2, count($originInfos[0]->getFrequencies()));
+        self::assertEquals('Three times a year', $originInfos[0]->getFrequencies()[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getAgents());
+        //self::assertNotEmpty($originInfos[0]->getAgents()[0]->getNamePart());
     }
 
     public function testGetOriginInfosByQueryForSerialDocument()
@@ -713,8 +750,25 @@ public function testGetOriginInfosByQueryForSerialDocument()
         self::assertNotEmpty($originInfos[0]->getValue());
         self::assertNotEmpty($originInfos[0]->getEventType());
         self::assertEquals('publication', $originInfos[0]->getEventType());
-
-        // TODO: implement reading of elements
+        self::assertNotEmpty($originInfos[0]->getPlaces());
+        self::assertEquals(2, count($originInfos[0]->getPlaces()));
+        $placeTerms = $originInfos[0]->getPlaces()[0]->getPlaceTerms();
+        self::assertNotEmpty($placeTerms);
+        self::assertEquals('marccountry', $placeTerms[0]->getAuthority());
+        self::assertEquals('code', $placeTerms[0]->getType());
+        self::assertEquals('abc', $placeTerms[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getIssuedDates());
+        self::assertEquals(3, count($originInfos[0]->getIssuedDates()));
+        self::assertEquals('marc', $originInfos[0]->getIssuedDates()[0]->getEncoding());
+        self::assertEquals('start', $originInfos[0]->getIssuedDates()[0]->getPoint());
+        self::assertEquals('2002', $originInfos[0]->getIssuedDates()[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getIssuances());
+        self::assertEquals('serial', $originInfos[0]->getIssuances()[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getFrequencies());
+        self::assertEquals(2, count($originInfos[0]->getFrequencies()));
+        self::assertEquals('Three times a year', $originInfos[0]->getFrequencies()[0]->getValue());
+        self::assertNotEmpty($originInfos[0]->getAgents());
+        //self::assertNotEmpty($originInfos[0]->getAgents()[0]->getNamePart());
     }
 
     public function testGetNoOriginInfosByQueryForSerialDocument()
diff --git a/tests/resources/mods_book.xml b/tests/resources/mods_book.xml
index bf3a591..63dd3df 100644
--- a/tests/resources/mods_book.xml
+++ b/tests/resources/mods_book.xml
@@ -52,7 +52,6 @@
             <placeTerm authority="marccountry" type="code">nyu</placeTerm>
         </place>
         <dateIssued encoding="marc">1999</dateIssued>
-        <issuance>monographic</issuance>
         <place>
             <placeTerm type="text">Ithaca, N.Y</placeTerm>
         </place>