Annals of Operations Research
Annals of Operations Research > 2012 > 196 > 1 > 517-541
Annals of Operations Research > 2012 > 200 > 1 > 279-298
Annals of Operations Research > 2012 > 196 > 1 > 517-541
Annals of Operations Research > 2012 > 200 > 1 > 279-298