@inproceedings{STOC-1997-AsanoKTT,
	author        = "Tetsuo Asano and Naoki Katoh and Hisao Tamaki and Takeshi Tokuyama",
	booktitle     = "{Proceedings of the 29th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/258533.258602",
	isbn          = "0-89791-888-6",
	pages         = "275--283",
	publisher     = "{ACM}",
	title         = "{Covering Points in the Plane by k-Tours: Towards a Polynomial Time Approximation Scheme for General k}",
	year          = 1997,
}