00272nam a2200121Ia 4500082002000000100001700020100001700037245002400054250000600078260000900084300000600093650005100099  a658.4034  SWA-O  aKantiswarup   aP . K. Gupta  aOperations Research  a0  c2001  a0  aOperations Research Kantiswarup & P . K. Gupta