1. Lecture Notes in Computer Science;M. Aksit,1992
2. Beck, K.: Extreme Programming Explained: Embrace Change. Addison-Wesley, Reading (2000)
3. Critical Pervasive Computing: Research proposal. Department of Computer Science, Aarhus University (2005)
4. Birtwistle, G., Dahl, O.-J., Myrhaug, B., Nygaard, K.: SIMULA BEGIN. Studentlitteratur, Lund, Sweden (1979)
5. Lecture Notes in Computer Science;A. Yonezawa,1987