diff --git a/docs/api/cyclone/concurrent.md b/docs/api/cyclone/concurrent.md
index e67c294f..c3dcfeed 100644
--- a/docs/api/cyclone/concurrent.md
+++ b/docs/api/cyclone/concurrent.md
@@ -4,6 +4,8 @@ The `(cyclone concurrent)` library makes it easier to write concurrent programs
 
 Much of the API is based on, or inspired by, similar constructs from Clojure.
 
+Shared Queues and Thread Pools are loosly based off of API's from [Sagittarius Scheme](https://bitbucket.org/ktakashi/sagittarius-scheme/wiki/Home).
+
 ## Index
 
 [Shared Objects](#shared-objects)