A Process Algebra Semantics for MSC Including Conditions
T. Gehrke, M. Huhn, P. Niebert, A. Rensink, H. Wehrheim, in: H. K\'22onig, P. Langend\'22orfer (Eds.), Formale Beschreibungstechniken F\'22ur Verteilte Systeme, 8. GI/ITG-Fachgespr\'22ach, Cottbus, 4. Und 5. Juni 1998, 1998, pp. 185--196.

An Algebraic Semantics for Message Sequence Chart Documents
T. Gehrke, M. Huhn, A. Rensink, H. Wehrheim, in: S. Budkowski, A. R. Cavalli, E. Najm (Eds.), Formal Description Techniques and Protocol Specification, Testing and Verification, FORTE XI / PSTV XVIII’98, IFIP T W.1 Joint International Conference on Formal Description Techniques for Distributed Systems and Communication Protocols (FORTE XI) and Protocol Specification, Testing and Verification (PSTV XVIII), 3-6 November, 1998, Paris, France, 1998, pp. 3--18.

Partial Order Reductions for Bisimulation Checking
M. Huhn, P. Niebert, H. Wehrheim, in: V. Arvind, R. Ramanujam (Eds.), Foundations of Software Technology and Theoretical Computer Science, 18th Conference, Chennai, India, December 17-19, 1998, Proceedings, 1998, pp. 271--282.

Dependency-Based Action Refinement
A. Rensink, H. Wehrheim, in: I. Pr\rquote vara, P. Ruzicka (Eds.), Mathematical Foundations of Computer Science 1997, 22nd International Symposium, MFCS’97, Bratislava, Slovakia, August 25-29, 1997, Proceedings, 1997, pp. 468--477.

Dependency-Based Action Refinement
A. Rensink, H. Wehrheim, in: I. Pr\rquote vara, P. Ruzicka (Eds.), Mathematical Foundations of Computer Science 1997, 22nd International Symposium, MFCS’97, Bratislava, Slovakia, August 25-29, 1997, Proceedings, 1997, pp. 468--477.

Specifying reactive systems with action dependencies: modelling and hierarchical design
H. Wehrheim, Specifying Reactive Systems with Action Dependencies: Modelling and Hierarchical Design, University of Hildesheim, Germany, 1996.

Modelling Causality via Action Dependencies in Branching Time Semantics
U. Goltz, H. Wehrheim, Inf. Process. Lett. (1996) 179--184.

Causal Testing
U. Goltz, H. Wehrheim, in: W. Penczek, A. Szalas (Eds.), Mathematical Foundations of Computer Science 1996, 21st International Symposium, MFCS’96, Cracow, Poland, September 2-6, 1996, Proceedings, 1996, pp. 394--406.

Weak Sequential Composition in Process Algebras
A. Rensink, H. Wehrheim, in: B. Jonsson, J. Parrow (Eds.), CONCUR ’94, Concurrency Theory, 5th International Conference, Uppsala, Sweden, August 22-25, 1994, Proceedings, 1994, pp. 226--241.

Parametric Action Refinement
H. Wehrheim, in: E.-R\'22udiger Olderog (Ed.), Programming Concepts, Methods and Calculi, Proceedings of the IFIP T/W.1/W.2/W.3 Working Conference on Programming Concepts, Methods and Calculi (PROCOMET ’94) San Miniato, Italy, 6-10 June, 1994, 1994, pp. 247--266.