1. R. Bastide, Objects Coopératifs: un formalisme pour la modélisation des systemes concurrentes, Théses de doctorat de lÚniversité Toulouse I, France, 1992.
2. R. Bastide, P. Palanque, Implementation techniques for Petri Net based specifications of Human-Computer dialogues, in J. Vanderdonckt, Proc. of Computer-Aided Design of User Interfaces, Presses Universitaires de Namur, 1996, 285–301.
3. C. Batini, S. Ceri, S.B. Navathe, Conceptual Database Design: An Entity-Relationship Approach, The Benjamin/Cummings Publishing Company Inc, 1992.
4. S. Brinkkemper, M. Saeki, F. Harmsen, Meta-Modelling Based Assembly Techiques for Situational Method Engineering, Information Systems, 24,3, 1999, 209–228.
5. D. Coleman, F Hayes, S. Bear, Introducing Objectcharts or how to use statecharts in object-oriented design, IEEE Trans. on Soft. Eng., 18,1, January 1992, 9–18.