- TFAIS. 1985.
- TFAIS. 1985.
- TFAIS. 1985.
- Amílcar Sernadas, Janis A. Bubenko Jr., Antoni Olivé, editors, Information Systems - Theoretical and Formal Aspects, TFAIS 1985, Proceedings of the IFIP WG8.1 Working Conference, Sitges, Spain, 16-18 April 1985. Elsevier/North-Holland, 1985.