@inproceedings{STOC-2003-DeyGJ,
	author        = "Tamal K. Dey and Joachim Giesen and Matthias John",
	booktitle     = "{Proceedings of the 35th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/780542.780614",
	isbn          = "1-58113-674-9",
	pages         = "493--502",
	publisher     = "{ACM}",
	title         = "{Alpha-shapes and flow shapes are homotopy equivalent}",
	year          = 2003,
}