1. Hyperledger fabric: a distributed operating system for permissioned blockchains,2018
2. Brandstätt, C., Brunekreeft, G. and Friedrichsen, N. (2011), “Improving investment coordination in electricity networks through smart contracts”, Bremen Energy, Working Papers.
3. Buterin, V. (2014), “Ethereum: a next-generation smart contract and decentralized application platform”, available at: www.weusecoins.com/assets/pdf/library/Ethereum_white_paper-a_next_generation_smart_contract_and_decentralized_application_platform-vitalik-buterin.pdf
4. Adding concurrency to smart contracts,2017