Annals of Operations Research
Annals of Operations Research > 2012 > 196 > 1 > 201-222
Annals of Operations Research > 2012 > 201 > 1 > 17-38
Annals of Operations Research > 2012 > 196 > 1 > 201-222
Annals of Operations Research > 2012 > 201 > 1 > 17-38