1. Lecture Notes in Computer Science;G. Agha,1992
2. Broy, M.: Towards a Mathematical Concept of a Component and its Use. First Components' User Conference, Munich (1996)
3. Revised version in: Software - Concepts and Tools 18, 137-148 (1997)
4. Broy, M., Stølen, K.: Specification and Development of Interactive Systems: Focus on Streams, Interfaces, and Refinement. Springer (2001)
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