Indian journal of pure and applied physics (2017) / edited by R S Beniwal . - New Delhi : NISCAIR , 2017. - 1 v: ills; 28 cm. - M BJ4987-Vol.55 no.1-6,BJ4988-Vol.55 no.7-12 ISSN: 00195596 Subjects--Topical Terms: PHYSICS-PERIODICALS Dewey Class. No.: 530.05 / BEN /I