1. Nakamoto, S.: Bitcoin: a peer-to-peer electronic cash system. Nakamotoinstitute.org, October 2008. https://bitcoin.org/bitcoin.eps. Accessed 09 Sept 2021
2. Buterin, V.: ETH whitepaper. https://ethereum.org/en/whitepaper/. Accessed 09 Sept 2021
3. ERC-20 Specification. https://ethereum.org/en/developers/docs/standards/tokens/erc-20/. Accessed 10 Sept 2021
4. Antonopoulos, A., Wood, G.: Mastering Ethereum, building smart contracts and dapps, O’Reilly Media, 2019
5. Newman, M.E.J.: The structure and function of complex networks. SIAM Rev. 45, 167–257 (2003). https://doi.org/10.1137/S003614450342480