1. BMG Engineering Ltd, Ifangstrasse 11, CH-8952 Zürich-Schlieren, Switzerland
2. Commisariat ä l'Energie Atomique (CEA), F-91400 Saclay, France
3. HSK, CH-5232 Villigen-HSK, Switzerland
4. Power Reactor and Nuclear Fuel Development Corporation, 4-33 Muramatsu, Tokai-mura, Ibaraki-ken 319-11, Japan