Annals of Operations Research
Annals of Operations Research > 2013 > 206 > 1 > 611-626
Annals of Operations Research > 2013 > 206 > 1 > 115-145
Annals of Operations Research > 2013 > 207 > 1 > 217-235
Annals of Operations Research > 2013 > 207 > 1 > 181-200