diff --git a/core-kotlin-2/README.md b/core-kotlin-2/README.md
index 6aabd71a6c..8d22c4f1a8 100644
--- a/core-kotlin-2/README.md
+++ b/core-kotlin-2/README.md
@@ -1,3 +1,4 @@
 ## Relevant articles:
 
 - [Void Type in Kotlin](https://www.baeldung.com/kotlin-void-type)
+- [How to use Kotlin Range Expressions](https://www.baeldung.com/kotlin-ranges)