机读格式显示(MARC)

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• 093 __ |a O22-53 |v 4

• 245 1_ |a Operational Research'81; Proceedings of the 9th IFORS International Conference on Operational Research,Hamburg, Germany,July 20-24, 1981. |c J.P.Brans. |g |A OPERATIO,PROCEEDI,HAMBURG,GERM |F JPBRANS

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