1. Preston-Werner, Tom. “Readme Driven Development.” (blog). August 23, 2010. http://tom.preston-werner.com/2010/08/23/readme-driven-development.html.
2. Casey, D. Keith Jr. and James Higginbotham. A Practical Approach to API Design . LeanPub, 2014. (ebook). http://theapidesignbook.com.
3. Seward, Zachary M. “Dating app Tinder briefly exposed the physical location of its users.” http://qz.com/106731/tinder-exposed-users-locations.