1. Ethereum: a secure decentralised generalised transaction ledger EIP-150 REVISION;Wood,2014
2. Solidity Documentation, 2022, https://solidity.readthedocs.io.
3. Solidity Github, 2022, https://github.com/ethereum/solidity.
4. The DAO attack paradoxes in propositional logic;Zhao,2017
5. Modeling in Event-B: System and Software Engineering;Abrial,2010