- Commission of the European Communities (5)
- OECD Nuclear Energy Agency (5)
- France. Commissariat à l'énergie atomique (1)
- International Atomic Energy Agency (1)
- NEA/CEC Workshop on Emergency Planning in Case of Nuclear Accident (1)
- NEA/CEC Workshop on Sealing of Radioactive Waste Repositories (1)
- Organisation for Economic Co-operation and Development (1)
- Symposium on Safety Assessment of Radioactive Waste Repositories (1)
- Workshop on the Migration of Long-lived Radionuclides in the Geosphere (1979 : Brussels, Belgium) (1)