Operations Research Letters
Operations Research Letters > 2001 > 28 > 4 > 193-198
Operations Research Letters > 2001 > 28 > 4 > 181-185
Operations Research Letters > 2001 > 28 > 4 > 187-192
Operations Research Letters > 2001 > 28 > 4 > 161-167
Operations Research Letters > 2001 > 28 > 4 > 173-180
Operations Research Letters > 2001 > 28 > 4 > 155-160
Operations Research Letters > 2001 > 28 > 4 > 169-171
Operations Research Letters > 2001 > 28 > 4 > 149-154