diff --git a/inst/paper.bib b/inst/paper.bib
index fe81c839..6f6457ce 100755
--- a/inst/paper.bib
+++ b/inst/paper.bib
@@ -81,6 +81,7 @@ @techreport{Bates:2022
    title = {The MCNPTools Package: Installation and Use},
    institution = {Los Alamos National Laboratory},
    DOI = {10.2172/1884737},
+   number = {LA-UR-22-28935},
    url = {https://www.osti.gov/biblio/1884737},
    year = {2022},
    type = {Report}
@@ -100,3 +101,13 @@ @techreport{Campbell:2021
 }
 
 
+@misc{Scopatz:2012,
+   author = {Scopatz, Anthony and Romano, Paul K. and Wilson, Paul P. H. and Huff, Kathryn D.},
+   title = {PyNE: Python for Nuclear Engineering},
+   publisher = {American Nuclear Society},
+   volume = {107},
+   pages = {985-987},
+   month = {November 11-15},
+   year = {2012},
+   type = {Conference Paper}
+}