| Article ID: | iaor20123734 |
| Volume: | 23 |
| Issue: | 4 |
| Start Page Number: | 483 |
| End Page Number: | 492 |
| Publication Date: | May 2012 |
| Journal: | Journal of Combinatorial Optimization |
| Authors: | Chu Chengbin, Liu Ming, Zheng Feifeng, Zhang Jiantong |
| Keywords: | combinatorial optimization |
This paper consider