Annals of Operations Research
Annals of Operations Research > 2013 > 206 > 1 > 401-423
Annals of Operations Research > 2013 > 211 > 1 > 549-564
Annals of Operations Research > 2013 > 206 > 1 > 401-423
Annals of Operations Research > 2013 > 211 > 1 > 549-564