1. Ackerman MS, Thomas WM (1990) Answer garden: a tool for growing organizational memory. Proceedings of the ACM conference on office information systems. ACM Press publishing, New York, pp 31–39. (Cambridge, Massachusetts, USA)
2. Alexander C., Ishikawa S., Silverstein M., Jacobson M., Fiskdahl-King I, Angel S (1977) A pattern language. Oxford University Press, New York
3. Alur D, Malks D, Crupi J (2003) Core J2EE patterns: best practices and design strategies. Sun microsystems core design series. Prentice Hall PTR, Upper Saddle River
4. Appleton B (2000) Patterns and software: essential concepts and Terminology.
http://www.cmcrossroads.com/bradapp/docs/patterns-intro.html
. Accessed 15 April 2015
5. Arutla K (2000) Tool support for pattern oriented analysis and design. Master thesis, Department of Computer Science and Electrical Engineering. University of West Virginia, Morgantown