Bibliography

   Sherman R. Alpert, Kyle Brown and Bobby Woolf: The Design Patterns Smalltalk Companion. Addison Wesley, 1998, ISBN 0–201–18462–1

   Kent Beck: Smalltalk Best Practice Patterns. Prentice-Hall, 1997

   Kent Beck: Test Driven Development: By Example. Addison-Wesley, 2003, ISBN 0–321–14653–0

   John Brant  et al.: Wrappers to the Rescue. In Proceedings European Conference on Object Oriented Programming (ECOOP’98). Volume 1445, Springer-Verlag 1998, 396–417

   Erich Gamma  et al.: Design Patterns: Elements of Reusable Object-Oriented Software. Reading, Mass.: Addison Wesley, 1995, ISBN 0–201–63361–2–(3)