By Korhonen P.J.   in Annals of Operations Research

ISSN:0254-5330|121|1-4|105-122

Springer Publishing Company ‎(2003)‎

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By Korhonen P.J.   Luptacik M.   in European Journal of Operational Research

ISSN:0377-2217|154|2|437-446

Elsevier‎(2004)‎

Access to resources Favorite 14.503416