[1] UNIV BOLOGNA,DEPARTIMENTO FIS,IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY
[2] BOSTON UNIV,DEPT PHYS,BOSTON,MA 02215
[3] CALTECH,LAURITSEN LAB,PASADENA,CA 91125
[4] CERN,DIV EP,CH-1211 GENEVA 23,SWITZERLAND
[5] DREXEL UNIV,DEPT PHYS,PHILADELPHIA,PA 19104
[6] INDIANA UNIV,DEPT PHYS,BLOOMINGTON,IN 47405
[7] UNIV AQUILA,DEPARTIMENTO FIS,I-67100 AQUILA,ITALY
[8] UNIV MICHIGAN,RANDALL LAB PHYS,ANN ARBOR,MI 48109
[9] TEXAS A&M UNIV,DEPT PHYS,COLLEGE STN,TX 77843
[10] UNIV TURIN,DEPARTIMENTO FIS,IST NACL FIS NUCL,I-10125 TURIN,ITALY
[11] IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY
[12] IST NAZL FIS NUCL,DIPARTIMENTO FIS,I-80125 NAPOLI,ITALY
[13] IST NAZL FIS NUCL,I-56010 SAN PIERO GRADO,ITALY
[14] UNIV ROMA,DIPARTIMENTO FIS,IST NAZL FIS NUCL,I-00186 ROMA,ITALY