diff --git a/strategies/vix-stretches/README.md b/strategies/vix-stretches/README.md
index 9fc59fb..68b45aa 100644
--- a/strategies/vix-stretches/README.md
+++ b/strategies/vix-stretches/README.md
@@ -1,3 +1,5 @@
 # VIX Stretches
 
+This strategy was taken from chapter 12 of [*Short Term Trading Strategies That Work*](https://moshferatu.dev/moshferatu/short-term-trading-strategies-that-work) (2008) by Larry Connors.
+
 ---
\ No newline at end of file