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European Journal of Operational Research > 2005 > 162 > 1 > 220-238
Journal of Heuristics > 2002 > 8 > 3 > 251-276
European Journal of Operational Research > 2005 > 162 > 1 > 220-238
Journal of Heuristics > 2002 > 8 > 3 > 251-276