1. Alur, R., Courcoubetis, C. and Dill, D. (1990) Model-checking for real-time systems, IEEE Fifth Annual Symposium On Logic In Computer Science, Philadelphia, pp. 414–425.
2. Alur, R., Courcoubetis, C. and Dill, D. (1993) Model-checking in dense real-time, Infor-mation and Computation 104, 2 — 34.
3. Bradley, S., Henderson, W. D., Kendall, D. and Robson, A. P. (1994a) Application-Oriented Real-Time Algebra, Software Engineering Journal 9(5), 201–212.
4. Bradley, S., Henderson, W. D., Kendall, D. and Robson, A. P. (1994b) Designing and implementing correct real-time systems, in H. Langmaack, W.-P. de Roever and J. Vytopil (eds), Formal Techniques in Real-Time and Fault-Tolerant Systems FTRTFT ’84, Lubeck, Lecture Notes in Computer Science 863, Springer-Verlag, pp. 228–246.
5. Bradley, S., Henderson, W. D., Kendall, D. and Robson, A. P. (1995a) Modelling data in a real-time algebra, Technical Report NPC-TRS-95–1, Department of Computing, University of Northumbria, UK. Submitted for publication.