1. Abowd, G.D., Dey, A.K.: Towards a Better Understanding of Context and Context-Awareness. In: Proceedings of the CHI 2000 Workshop on the What, Who, Where, When and How of Context-Awareness. ACM Press, New York (2000)
2. Achermann, F., Lumpe, M., Schneider, J.-G., Nierstrasz, O.: Piccola — a Small Composition Language. In: Bowman, H., Derrick, J. (eds.) Formal Methods for Distributed Processing — A Survey of Object-Oriented Approaches, pp. 403–426. Cambridge University Press, Cambridge (2001)
3. Baldauf, M., Dustdar, S., Rosenberg, F.: A Survey on Context-Aware Systems. International Journal of Ad Hoc and Ubiquitous Computing 2(4), 263–277 (2007)
4. Beck, K.: Extreme Programming Explained: Embrace Change. Addison-Wesley, Reading (2000)
5. Beck, K.: Test Driven Development: By Example. Addison-Wesley Longman, Amsterdam (2002)