1. J.C.M. Baeten & J.A. Bergstra, Real time process algebra. Formal Aspects of Computing 3 (2), 1991, pp. 142–188.
2. J.C.M. Baeten & J.A. Bergstra, A survey of axiom systems for process algebras, report P9111, Programming Research Group, University of Amsterdam 1991.
3. J.C.M. Baeten & J.A. Bergstra, Process algebra with signals and conditions, report CS-R9103, CWI, Amsterdam 1991. To appear in Proc. NATO Summer School, Marktoberdorf 1990 (M. Broy, ed.), Springer Verlag.
4. J.C.M. Baeten & J.A. Bergstra, Real space process algebra, report CSN 92/03, Dept. of Comp. Sci., Eindhoven University of Technology 1992.
5. J.C.M. Baeten & W.P. Weijland, Process algebra, Cambridge Tracts in Theor. Comp. Sci. 18, Cambridge University Press 1990.