Guang Xu, Jinhui Xu. An LP rounding algorithm for approximating uncapacitated facility location problem with penalties. Inf. Process. Lett., 94(3):119-123, 2005. [doi]
@article{XuX05:1,
title = {An LP rounding algorithm for approximating uncapacitated facility location problem with penalties},
author = {Guang Xu and Jinhui Xu},
year = {2005},
doi = {10.1016/j.ipl.2005.01.005},
url = {http://dx.doi.org/10.1016/j.ipl.2005.01.005},
researchr = {https://researchr.org/publication/XuX05%3A1},
cites = {0},
citedby = {0},
journal = {Inf. Process. Lett.},
volume = {94},
number = {3},
pages = {119-123},
}