References
[1] Kent Beck, Extreme Programming Explained: Embrace Change, Second Edition. Addison-Wesley, 2004.
[2] Markus Gärtner, ATDD by Example: A Practical Guide to Acceptance Test-Driven Development. Addison-Wesley, 2012.
[3] Frank Westphal, Testgetriebene Entwicklung mit JUnit und FIT: Wie Software änderbar bleibt (English: Test-Driven Development with JUnit and FIT: How Software Stays Changeable). dpunkt Verlag, 2005.
[4] Steve Freeman and Nat Pryce, Growing Object-Oriented Software, Guided by Tests. Addison-Wesley, 2009.
[5] Rick Mugridge and Ward Cunningham, Fit for Developing Software: Framework for Integrated Tests. Prentice Hall, 2005.
[6] George Dinwiddie, "The Three Amigos: All for One and One for All." StickyMinds.com, November 29, 2011.
[7] Markus Gärtner, "Getting Started with ATDD: Overcoming the Biggest Mistakes Right from the Start." InformIT.com, May 25, 2012.
[8] Alistair Cockburn, "Hexagonal Architecture." Alistair Cockburn.us, January 4, 2005.