00278nam a2200121Ia 4500003000400000005001700004008004100021100002000062245001300082250000900095260004200104300001000146TMU20250721160129.0230125s9999    xx            000 0 und d  aVasishtha, A.R. 0aMatrices  a48th  bKrishna Prakashan Mediac2016aMeerut  a384p.