Computers & Operations Research
Computers and Operations Research > 2009 > 36 > 2 > 344-357
Computers and Operations Research > 2009 > 36 > 2 > 308-315
Computers and Operations Research > 2009 > 36 > 2 > 565-583
Computers and Operations Research > 2009 > 36 > 2 > 344-357
Computers and Operations Research > 2009 > 36 > 2 > 308-315
Computers and Operations Research > 2009 > 36 > 2 > 565-583