1. M.P. Atkinson, P. Buneman and R. Morrison, editors. Data Types and Persistence. Topics in Information Systems. Springer Verlag, 1988.
2. N. Boudjlida and O. Perrin. A Formal Framework and a Procedural Approach for Data Integration. In Proceedings of the International Conference on Systems Integration, ICSI’94, pages 476–485, São Paulo, Brazil, August 1994. IEEE Comp. Society Press.
3. A. Brown. Control Integration Through Message Passing in a Software Development Environment. Technical Report CMU/SEI-92-TR35, Soft. Engineering Institute, 1992.
4. M.R. Cagan. The HP Softbench Environment: An Architecture for a New Generation of Software Tools. Hewlett-Packard Journal, pages 36–47, June 1990.
5. L. Cardelli and P. Wegner. On Understanding Types, Data Abstraction and Polymorphism. ACM Computing Surveys, 17(4):471–522, December 1985.