diff --git a/Smart-Contract-Security/README.md b/Smart-Contract-Security/README.md
index d826e62..8ec78d1 100644
--- a/Smart-Contract-Security/README.md
+++ b/Smart-Contract-Security/README.md
@@ -17,3 +17,19 @@ balances[msg.sender] -= amount;
 * Invocation of local functions via `this`: never use `this` to call functions in the same contract, it only consumes more gas than normal call.
 * Transferring Ether in a for/while/do-while loop should be avoid due to the block gas limit.
 * ERC20 `decimals` should have `uint8` as return type.
+
+<br>
+
+---
+
+<br>
+
+
+
+### References
+
+* [Uniswap Oracle Attack Simulator by Euler](https://blog.euler.finance/uniswap-oracle-attack-simulator-42d18adf65af)
+   * "Given current concentrated liquidity profile of the ABC/WETH pool, what would it cost the attacker to move a N-minute TWAP of the ABC price to x?" 
+* [Hacking the Blockchain by Immunifi](https://medium.com/immunefi/hacking-the-blockchain-an-ultimate-guide-4f34b33c6e8b)
+* [Thinking About Smart Contract Security by Vitalik](https://blog.ethereum.org/2016/06/19/thinking-smart-contract-security/)
+* [Spoof tokens on Ethereum](https://medium.com/etherscan-blog/spoof-tokens-on-ethereum-c2ad882d9cf6)