1. II. Physikalisches Institut, University of Gießen, D-35392, Germany
2. Dipartimento di Fisica "A. Avogadro" and INFN - Torino, Italy
3. Laboratoire National Saturne, CEA Saclay, France
4. Indiana University Cyclotron Facility, Bloomington, Indiana 47408, USA
5. Universita' del Piemonte Orientale and INFN - Torino, Italy
6. Forschungszentrum Rossendorf, Germany
7. H.Niewodniczanski Institute of Nuclear Physics, Kraków, Poland
8. M. Smoluchowski Institute of Physics, Jagellonian University, Kraków, Poland
9. JINR, Dubna, Russia