00429nam a2200133Ia 4500008004100000082002000041245003800061260003100099650002500130700000800155942000700163999001700170952010800187220204s9999    xx            000 0 und d  a65.012.122bLIT 0aOperational research for managers  aOxfordbPhilip Allanc1977  aOperational research  aS C  cBK  c28017d28017  00104070aMAINbMAINd2021-12-16g7.50l0o65.012.122 LITp08632r2021-12-16 00:00:00w2022-02-14yBK