diff --git a/References.md b/References.md
index 69bcc7a..b5ff225 100644
--- a/References.md
+++ b/References.md
@@ -7,4 +7,7 @@
 7. https://debezium.io/
 8. https://www.melconway.com/Home/Conways_Law.html
 9. https://corecursive.com/066-sqlite-with-richard-hipp/
-10.https://www.johndcook.com/blog/2010/11/29/where-to-wait-for-an-elevator/
\ No newline at end of file
+10.https://en.wikipedia.org/wiki/Hurst_exponent 
+11.https://www.johndcook.com/blog/2010/11/29/where-to-wait-for-an-elevator
+
+