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European Journal of Operational Research > 2006 > 173 > 3 > 827-838
Computers & Industrial Engineering > 1998 > 35 > 1-2 > 113-116
European Journal of Operational Research > 2006 > 173 > 3 > 827-838
Computers & Industrial Engineering > 1998 > 35 > 1-2 > 113-116