Sengupta, S. P. . Indian journal of physics (1996) / Monographic Serials edited by S. P. Sengupta. - Kolkata : Indian Association for the cultivation of science , 1996. - V.70A & 70B : figs., tables ; 24cm . - No.1-3(BJ-1698)- NULL ISBN: NULL (Hb) Subjects--Index Terms: PHYSICS Dewey Class. No.: 530.095405 / SEN/I