diff --git a/README.adoc b/README.adoc
index 6afb65d..4d565b6 100644
--- a/README.adoc
+++ b/README.adoc
@@ -11841,6 +11841,8 @@ Then it is just a huge copy paste of infinite boring details:
 * <<x86-simd>>
 * <<arm-simd>>
 
+Bibliography: https://stackoverflow.com/questions/1389712/getting-started-with-intel-x86-sse-simd-instructions/56409539#56409539
+
 === User vs system assembly
 
 By "userland assembly", we mean "the parts of the ISA which can be freely used from userland".