diff --git a/src/lab/exp9/Further Readings.html b/src/lab/exp9/Further Readings.html
index c8c9221..370838e 100644
--- a/src/lab/exp9/Further Readings.html	
+++ b/src/lab/exp9/Further Readings.html	
@@ -107,8 +107,8 @@ <h1 class="text-h2-lightblue">Diffie-Hellman Key Establishment</h1><div class="c
 <a href="http://www.cs.berkeley.edu/~luca/cs276/lecture17.pdf">Notes on Diffie Hellman Key Exchange</a>
 </li>
 <li>
-               Introduction to Modern Cryptography by Jonathan Katz and Yehuda Lindell.
-              </li>
+<a href="https://repo.zenk-security.com/Cryptographie%20.%20Algorithmes%20.%20Steganographie/Introduction%20to%20Modern%20Cryptography.pdf">Introduction to Modern Cryptography by Jonathan Katz and Yehuda Lindell.</a>
+</li>
 </ul>
 </div>						</div>
 					</div>