@inproceedings{STOC-2012-AnKS,
	author        = "Hyung-Chan An and Robert Kleinberg and David B. Shmoys",
	booktitle     = "{Proceedings of the 44th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/2213977.2214055",
	isbn          = "978-1-4503-1245-5",
	pages         = "875--886",
	publisher     = "{ACM}",
	title         = "{Improving christofides’ algorithm for the s-t path TSP}",
	year          = 2012,
}