TY - SER AU - Dhawan,J B . AU - Banerjee,Tarun . AU - Bhatt,Poonam . AU - Gupta,Prabha . TI - Indian journal of pure and applied physics (2002) / U1 - 530.05 PY - 2002/// CY - New Delhi : PB - National Institute of Science Communication, CSIR , KW - PHYSICS-PERIODICALS N1 - Frequency: Monthly. ISSN: 0019-5596(Print), 0975-1041(Online). Abstract journal; Includes bibliographical references and index ER -