00416nam a2200181Ia 4500003000400000005001700004008004100021020001500062040000700077041000800084082002400092100001900116245002500135250000600160260004000166300001500206365001300221OSt20230331092858.0210423s2009    xx            000 0 und d  a8125912754  cAL  aeng  a658.4034223b KALS  aKALAVATHY (S).  aOperations research.  a2  aNew DelhibVikas Publicationsc2009  axv,536bPB  b150cINR