diff --git a/avril_2023.bib b/avril_2023.bib
index e582d57..87ab387 100644
--- a/avril_2023.bib
+++ b/avril_2023.bib
@@ -539,6 +539,22 @@
     publisher= {Doubleday}}
 
 
+    @book{étiquette,
+    author = {Greenberg, Andy},
+    title = {Tracers in the Dark: The Global Hunt for the Crime Lords of Cryptocurrency},
+    year = {2022},
+    publisher = {Doubleday},
+    note = {Livre d'enquête consacré à l'utilisation des crypto-monnaies par des groupes cyber-criminels}
+    isbn = {978-0385548090}}
+
+    @book{étiquette,
+    author = {Greenberg, Andy},
+    title = {Les criminels de la cryptomonnaie - Traque au coeur du Dark Web},
+    year = {2022},
+    publisher = {Saint-Simon},
+    note = {Traduction française par Henri Froment du livre "Tracers in the Dark"}
+    isbn = {978-2374350363}}
+
     @book{étiquette,
     author = {Goldstein, Guy-Philippe},
     title = {Babel minute zéro},