1. Rolland D., Huet B.: “Une approche structurée pour la conception des systèmes d’Information Médicaux”. 11nd International congress on system Science in Health Care. Proc. Montreal. 13 – 17 July 1980.
2. ANSI/X3/S PARC (1977): Report in data base management system. Final Report. Washington.
3. Codd E.F.: A relational model for large shared data banks. Com. A.C.D. 13 (6), 377 - 387 (1970).
4. Rolland C., Foucaut O.: Concepts for the design of an information system conceptuáis schema and its utilization in the REMORA project. Proc. IVth International Conference VLDB - Berlin 1978.
5. Rolland C., Leifert S., Richard C.: Tools for information systems dynamics management. Proc. Vth International Conference VLDB - Rio de Janeiro 1979.