*

Olpinski, Maciej. “Building ‘Google For The Economic Web’ on The Ethereum Blockchain”. Userfeeds. Nov 02, 2016. Accessed before May 2020. https://web.archive.org/web/20170608021559/https://blog.userfeeds.io/building-google-for-the-economic-web-on-the-ethereum-blockchain-de27cb3d23b

https://token.kitchen/token-economy/v3ch2chapter-references