1. Gat, I., Succi, G.: A Survey of the API Economy. Cut. Consort (2013)
2. Fielding, R.T., Taylor, R.N.: Principled design of the modern Web architecture. ACM Trans. Internet Technol. (TOIT) 2(2), 115–150 (2002)
3. Amundsen, M.: RESTful Web Clients: Enabling Reuse Through Hypermedia. O’Reilly Media, Inc, Sebastopol (2017)
4. ProgrammableWeb.
http://www.programmableweb.com/
5. APIs.io.
http://apis.io/