000 00375nam a2200157Ia 4500
008 140613s1971 xx 000 0 und d
020 _a0715354140
082 _a001.424
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100 _aYEWDALL, G A
245 _aOperational research
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260 _bPAN
_aLONDON
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300 _a217
_b
650 _aOPERATIONS RESEARCH
700 _aWICKS, C T
_e
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