Computers & Operations Research
Computers and Operations Research > 2009 > 36 > 6 > 2111-2121
Computers and Operations Research > 2009 > 36 > 10 > 2740-2747
Computers and Operations Research > 2009 > 36 > 6 > 2111-2121
Computers and Operations Research > 2009 > 36 > 10 > 2740-2747