diff --git a/PS2_Soarer_Converter/README.md b/PS2_Soarer_Converter/README.md
index ad166a0..8a21210 100644
--- a/PS2_Soarer_Converter/README.md
+++ b/PS2_Soarer_Converter/README.md
@@ -38,7 +38,8 @@ Soarer_Converter_v1.10.zip: https://deskthority.net/resources/file/6142
 
 ## Links
 - https://geekhack.org/index.php?topic=17458.0
-
+- http://www.computer-engineering.org/ps2protocol/
+- http://www.computer-engineering.org/ps2keyboard/scancodes2.html
 
 ## Keyboard controller
 - https://geekhack.org/index.php?topic=50437.0