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ISSN:0377-2217|139|3|533-542

Elsevier‎(2002)‎

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By Gabrel V.   Moulet A.   Murat C.   Paschos V.T.   in Annals of Operations Research

ISSN:0254-5330|69|1|115-134

Springer Publishing Company ‎(1997)‎

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