TY - SER AU - Bhatt,Poonam . TI - Indian journal of pure and applied physics (2012) / U1 - 530.05 PY - 2012/// CY - New Delhi : PB - CSIR-NISCAIR , KW - PHYSICS-PERIODICALS N1 - Frequency: Monthly. ISSN: 0019-5596(Print), 0975-1041(Online). Abstract journal; Includes bibliographical references and index ER -