diff --git a/README.md b/README.md
index 5e4e70b..b99f029 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,10 @@ This is a small program/simulation/whatever meant to emulate an OFDM modem.
 This is the pilot work for creating an underwater communications system for ARVP.
 Eventually I want to put this on an FPGA. (will it fit on an iCE40 I wonder?)
 
+Lot's of credit to [dspillustrations.com](https://dspillustrations.com/pages/posts/misc/python-ofdm-example.html),
+the linked post has been super useful to me, and while I try to claim I came up with most of this code
+myself, it would have taken a LOT longer to do without this post.
+
 ## OFDM Background ##
 
 ### TODO