@inproceedings{CHI-2012-DearmanGT,
	author        = "David Dearman and Richard T. Guy and Khai N. Truong",
	booktitle     = "{Proceedings of the 30th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/2207676.2208377",
	isbn          = "978-1-4503-1015-4",
	pages         = "2231--2234",
	publisher     = "{ACM}",
	title         = "{Determining the orientation of proximate mobile devices using their back facing camera}",
	year          = 2012,
}