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Annals of Operations Research > 2004 > 127 > 1-4 > 145-175
Annals of Operations Research > 2004 > 128 > 1-4 > 235-249
Annals of Operations Research > 2002 > 117 > 1-4 > 133-150
Annals of Operations Research > 2004 > 127 > 1-4 > 145-175
Annals of Operations Research > 2004 > 128 > 1-4 > 235-249
Annals of Operations Research > 2002 > 117 > 1-4 > 133-150