00338nam a2200133Ia 4500100003000000650002700030366000700057654002700064245005400091260001400145082001300159300000800172546002400180  aRakesh Kumar/ Nagendra K   aDifferential equations  f20  adifferential equations  aDifferential equations and calculus of variations  bCBSc2013  a515bKUM  a497  aENGLISHcproduction