| Article ID: | iaor20082854 |
| Country: | Netherlands |
| Volume: | 35 |
| Issue: | 4 |
| Start Page Number: | 427 |
| End Page Number: | 433 |
| Publication Date: | Jul 2007 |
| Journal: | Operations Research Letters |
| Authors: | Vygen Jens |
| Keywords: | heuristics: local search, location |
We improve the approximation ratio for the Universal Facility Location Problem to 6.702 by a local search algorithm with an extended pivot operation.