diff --git a/cross_domain_mev/README.md b/cross_domain_mev/README.md
index 9597000..ca8da6b 100644
--- a/cross_domain_mev/README.md
+++ b/cross_domain_mev/README.md
@@ -6,3 +6,4 @@
 
 * [westerngate.xyz](https://westerngate.xyz/)
 * [unity is strength by obadia et al](https://arxiv.org/pdf/2112.01472.pdf)
+* [studying cross-domain MEV by alex obadia](https://www.youtube.com/watch?v=dv5-Lzntv5M)