1. Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
2. Elektrizitäts-Gesellschaft Laufenburg AG, Lerzenstrasse 10, 8953 Dietikon, Switzerland
3. Lerzenstrasse 10, 8953 Dietikon, Switzerlan, SE-72163 Västerås, Sweden
4. Paul Scherrer Institute, 5232 Villigen PSI, Switzerland and Swiss Federal Institute of Technology 1015 Lausanne, Switzerland