By Williams C.L.   Patuwo B.E.   in European Journal of Operational Research

ISSN:0377-2217|116|2|352-373

Elsevier‎(1999)‎

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By Hu M.Y.   Hung M.S.   Patuwo B.E.   Shanker M.S.   in Annals of Operations Research

ISSN:0254-5330|87|1|213-232

Springer Publishing Company ‎(1999)‎

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