https://github.com/knownsec/Ethereum-Smart-Contracts-Security-CheckList/blob/master/%E4%BB%A5%E5%A4%AA%E5%9D%8A%E6%99%BA%E8%83%BD%E5%90%88%E7%BA%A6%E5%AE%A1%E8%AE%A1CheckList.md#11-%E6%9C%AA%E5%88%9D%E5%A7%8B%E5%8C%96%E7%9A%84%E5%82%A8%E5%AD%98%E6%8C%87%E9%92%88
https://www.chaindd.com/3102377.html
https://blog.b9lab.com/storage-pointers-in-solidity-7dcfaa536089
https://medium.com/loom-network/ethereum-solidity-memory-vs-storage-how-to-initialize-an-array-inside-a-struct-184baf6aa2eb
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