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Operations Research and Decisions > 2010 > 20 > 3-4 > 103-127
Operations Research and Decisions > 2009 > 19 > 3 > 95-117
Operations Research and Decisions > 2010 > 20 > 3-4 > 103-127
Operations Research and Decisions > 2009 > 19 > 3 > 95-117