000			00294nam a2200109Ia 4500
008			240109s9999 xx 000 0 und d
041			_aeng
100			_aSasieni N. Yaspan A. Friedman L.
245			_aOpearations Research.
260			_bJohn Wiley and Sons New York.
650			_aManagement
999			_c1019893 _d1019893