1. Akoka, J., Comyn-Wattiau, I.: Entity-relationship and object-oriented model automatic clustering. Data & Knowledge Engineering 20, 87–117 (1996)
2. Balzer, R., Cheatham, T.E., Green, C.: Software Technology in the 1990’s: Using a New Paradigm, pp. 16–22. IEEE Computer, Los Alamitos (1983)
3. Banerjee, J., Kim, W., Kim, H.-J., Korth, H.F.: Semantics and Implementation of Schema Evolution in Object-Oriented Databases. In: Proc. ACM SIGMOD 1987, pp. 311–322 (1987)
4. Beck, K.: Extreme Programming Explained. Embrace Change, p. 190. Addison-Wesley, Reading (2000)
5. Beck, K.: Test-Driven Development By Example, p. 220. Addison-Wesley, Reading (2003)