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＜図書＞
Operational research '81 : proceedings of the ninth IFORS International Conference on Operational Research, Hamburg, Germany, July 20-24, 1981 / edited by J.P. Brans.

出版者	Amsterdam : North-Holland
出版者	New York : Elsevier North-Holland
出版年	c1981.
出版年	c1981.
大きさ	xx, 984 p. : ill. ; 23 cm.
著者標目	International Conference on Operational Research (9th : 1981 ; Hamburg, Germany) Brans, J. P., 1937- International Federation of Operational Research Societies
件　名	Management -- Mathematical models -- Congresses  全ての件名で検索 Operations research -- Congresses  全ての件名で検索 System analysis -- Congresses  全ての件名で検索
一般注記	Summaries in English and French.

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