Annals of Operations Research
Annals of Operations Research > 2012 > 194 > 1 > 399-412
Annals of Operations Research > 2012 > 194 > 1 > 439-454
Annals of Operations Research > 2012 > 194 > 1 > 399-412
Annals of Operations Research > 2012 > 194 > 1 > 439-454