diff --git a/notes.md b/notes.md
index 36347d5..c52b206 100644
--- a/notes.md
+++ b/notes.md
@@ -98,3 +98,4 @@
 2017-02-24T08:16:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
 2017-02-24T02:37:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (stable-baselines3)
 2017-04-17T04:45:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2017-05-04T01:26:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)