@inproceedings{CHI-2008-ToomimZFL,
	author        = "Michael Toomim and Xianhang Zhang and James Fogarty and James A. Landay",
	booktitle     = "{Proceedings of the 26th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/1357054.1357086",
	isbn          = "978-1-60558-011-1",
	pages         = "193--196",
	publisher     = "{ACM}",
	title         = "{Access control by testing for shared knowledge}",
	year          = 2008,
}