@inproceedings{ICALP-v1-2012-ByrkaR,
	author        = "Jaroslaw Byrka and Bartosz Rybicki",
	booktitle     = "{Proceedings of the 39th International Colloquium on Automata, Languages, and Programming, Part I}",
	doi           = "10.1007/978-3-642-31594-7_14",
	isbn          = "978-3-642-31593-0",
	pages         = "157--169",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Improved LP-Rounding Approximation Algorithm for k-level Uncapacitated Facility Location}",
	volume        = 7391,
	year          = 2012,
}