[1] UNIV WARSAW,INST PHYS,PL-00681 WARSAW,POLAND
[2] INST NUCL STUDIES,PL-00681 WARSAW,POLAND
[3] YALE UNIV,DEPT PHYS,NEW HAVEN,CT 06520
[4] CERN,CH-1211 GENEVA 23,SWITZERLAND
[5] UNIV LIVERPOOL,DEPT PHYS,LIVERPOOL L69 3BX,ENGLAND
[6] FAC SCI LUMINY,CTR PHYS PARTICULES,F-13288 MARSEILLE,FRANCE
[7] UNIV LANCASTER,DEPT PHYS,LANCASTER LA1 4YB,ENGLAND
[8] UNIV OXFORD,NUCL PHYS LAB,OXFORD OX1 3RH,ENGLAND
[9] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND
[10] INST NATL PHYS NUCL & PHYS PARTICLES,PHYS PARTICULES LAB,F-74019 ANNECY LE VIEUX,FRANCE
[11] UNIV WUPPERTAL,FACHBEREICH PHYS,D-5600 WUPPERTAL,FED REP GER
[12] PHYS ZENTRUM,INST PHYS 3,D-5100 AACHEN,FED REP GER
[13] UNIV FREIBURG,FAK PHYS,D-7800 FREIBURG,FED REP GER
[14] UNIV TURIN,IST FIS,I-10125 TURIN,ITALY
[15] UNIV UPPSALA,DEPT RADIAT SCI,S-75121 UPPSALA,SWEDEN
[16] MAX PLANCK INST NUCL PHYS,D-6900 HEIDELBERG 1,FED REP GER
[17] UNIV ETAT MONS,FAC SCI,B-7000 MONS,BELGIUM