diff --git a/resources/weapons/a2a-missiles/AIM-9Juli-2X.yaml b/resources/weapons/a2a-missiles/AIM-9Juli-2X.yaml
index cf6ceb24..29414f15 100644
--- a/resources/weapons/a2a-missiles/AIM-9Juli-2X.yaml
+++ b/resources/weapons/a2a-missiles/AIM-9Juli-2X.yaml
@@ -1,6 +1,6 @@
 name: 2xAIM-9Juli
 year: 1990
-#BGT (German Company) upgrade to Spains existing 9J with L seeker, production started in 1990; overall performance somewhere between 9P4 and 9P5 in real life but between 9P5 and 9L in DCS
+#BGT (German Company) upgrade to Spains existing 9J with L seeker, production started in 1990 (https://apps.dtic.mil/sti/pdfs/ADA278261.pdf); overall performance somewhere between 9P4 and 9P5 in real life but between 9P5 and 9L in DCS
 fallback: 2xAIM-9P5
 clsids:
   - "{VSN_F4B_LAU105_AIM9JULI}"