00525nam a2200157Ia 4500020001800000082001700018100001700035245002500052260003800077650002500115700001500140942000700155999001500162952008400177952010600261  a9788121914697  a530.15 DAS/M  aDass, H. K.  0aMathematical Physics  bS. Chand & Co. aNew Delhi c2010  aMathematical Physics  aRama Verma  cBK  c4830d4830  001040708PHYaGBCTLbGBCTLcF24d2020-10-08g450.00o530.15 DAS/Mp45355yBK  00104070aGBCTLbGBCTLcF24d2026-06-05g450.00l0o530.15 DAS/Mp45356r2026-06-05w2026-06-05yBK