diff --git a/Biblio_Oct_23.bib b/Biblio_Oct_23.bib
index 2b1571e..2eec1f3 100644
--- a/Biblio_Oct_23.bib
+++ b/Biblio_Oct_23.bib
@@ -947,6 +947,7 @@
     year = {2023},
     publisher= {Wiley},
     note = {},
+    url = {https://warnerchad.medium.com/cyber-threat-intelligence-by-martin-lee-notes-494a028c7d74},
     isbn = {1119861748},
     keyword = {Cyber Threat Intelligence}}