By Gravel M.   Price W.L.   Gagne C.   in European Journal of Operational Research

ISSN:0377-2217|143|1|218-229

Elsevier‎(2002)‎

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By Gravel M.   Price W. L.   Gagné C.   in International Journal of Production Research

ISSN:1366-588X|38|13|3031-3041

Taylor & Francis Ltd‎(2000)‎

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