diff --git a/avril_2023.bib b/avril_2023.bib
index e1890a2..e582d57 100644
--- a/avril_2023.bib
+++ b/avril_2023.bib
@@ -769,6 +769,14 @@
     note = {Préface du Général Olivier BONNET DE PAILLERETS},
     isbn = {978-2-7178-7060-2}}
 
+    @book{étiquette,
+    author = {Lee, Marin},
+    title = {Cyber Threat Intelligence},
+    year = {2023},
+    publisher= {Wiley},
+    note = {},
+    isbn = {1119861748},
+    keyword = {Cyber Threat Intelligence}}
 
     @book{étiquette,
     author = {Leonetti, Xavier and Féral-Schull, Christiane},