@inproceedings{STOC-2002-Holmerin,
	author        = "Jonas Holmerin",
	booktitle     = "{Proceedings of the 34th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/509907.509986",
	isbn          = "1-58113-495-9",
	pages         = "544--552",
	publisher     = "{ACM}",
	title         = "{Vertex cover on 4-regular hyper-graphs is hard to approximate within 2-epsilon}",
	year          = 2002,
}