00350nam a2200121Ia 4500082002200000100002200022245008400044260003500128300000600163490004900169500000500218700000500223  a658.4034bC431.AO  aChacko, George K.  aApplied operations research/ systems analysis in hierarchical decision makingb  aAmsterdambNorth-Hollandc1976  a   aStudies in Management Science and Systems, 3  a  a