[1] PUNJAB UNIV,CHANDIGARH 160014,INDIA
[2] TASKENT PHYS TECH INST,TASKENT 700084,UZBEKISTAN,USSR
[3] TASHKENT NUCL PHYS INST,TASHKENT,UZBEKISTAN,USSR
[4] UNIV RAJASTHAN,JAIPUR 302004,RAJASTHAN,INDIA
[5] UNIV JAMMU,JAMMU 180001,INDIA
[6] UNIV WASHINGTON,SEATTLE,WA 98195
[7] HUA ZHONG NORMAL UNIV,WUHAN,PEOPLES R CHINA
[8] UNIV MARBURG,D-3550 MARBURG,FED REP GER
[9] UNIV LUND,S-22362 LUND,SWEDEN
[10] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,BERKELEY,CA 94720
[11] NATL RES COUNCIL CANADA,OTTAWA K1A 0R6,ONTARIO,CANADA
[12] CEN,F-38041 GRENOBLE,FRANCE
[13] SHANXI NORMAL UNIV,LINFEN,PEOPLES R CHINA
[14] CHINESE ACAD SCI,BEIJING,PEOPLES R CHINA