@inproceedings{STOC-2003-VegaKKR,
	author        = "Wenceslas Fernandez de la Vega and Marek Karpinski and Claire Kenyon and Yuval Rabani",
	booktitle     = "{Proceedings of the 35th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/780542.780550",
	isbn          = "1-58113-674-9",
	pages         = "50--58",
	publisher     = "{ACM}",
	title         = "{Approximation schemes for clustering problems}",
	year          = 2003,
}