Computers & Operations Research
Computers and Operations Research > 2009 > 36 > 5 > 1513-1528
Computers and Operations Research > 2009 > 36 > 12 > 3178-3186
Computers and Operations Research > 2009 > 36 > 5 > 1513-1528
Computers and Operations Research > 2009 > 36 > 12 > 3178-3186