| Article ID: | iaor20115761 |
| Volume: | 22 |
| Issue: | 1 |
| Start Page Number: | 52 |
| End Page Number: | 70 |
| Publication Date: | Jul 2011 |
| Journal: | Journal of Combinatorial Optimization |
| Authors: | Daescu Ovidiu, Cheung Ki |
| Keywords: | location |
In this paper, we present approximation algorithms for solving the