1. Belgian Nuclear Research Center (SCK-CEN), Mol (Belgium)
2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
3. Argonne National Lab. (ANL), Argonne, IL (United States)
4. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
6. Centre National de la Recherche Scientifique (CNRS), Orsay (France). Inst. National de Physique Nucleaire et de Physique des Particules (IN2P3), Centre de Sciences Nucleaires et de Sciences de la Matiere (CSNSM)
7. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
8. Brookhaven National Lab. (BNL), Upton, NY (United States)