000 00286nam a2200121Ia 4500
008 221102s9999 xx 000 0 und d
100 _aAckoff
245 0 _aFundamental of operation research
260 _bJohn Wiley
_aNew York
_c1968
300 _a455 p.
700 _aSasieni
942 _cBK
999 _c228
_d228