diff --git a/Solidity-Expert/README.md b/Solidity-Expert/README.md
index 44d4b78..dd74999 100644
--- a/Solidity-Expert/README.md
+++ b/Solidity-Expert/README.md
@@ -10,3 +10,20 @@
 <br>
 
 ### Reentrancy
+
+
+<br>
+
+
+---
+
+<br>
+
+
+### References
+
+* [Solidity docs (a must for any engineer)](https://docs.soliditylang.org/en/v0.8.12/)
+* [OpenZeppelin docs](https://docs.openzeppelin.com/)
+* [Solidity style guide](https://docs.soliditylang.org/en/latest/style-guide.html)
+
+<br>