@inproceedings{CHI-2010-Li,
	author        = "Yang Li",
	booktitle     = "{Proceedings of the 28th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/1753326.1753654",
	isbn          = "978-1-60558-929-9",
	pages         = "2169--2172",
	publisher     = "{ACM}",
	title         = "{Protractor: a fast and accurate gesture recognizer}",
	year          = 2010,
}