@inproceedings{CHI-2007-WigdorSFB,
	author        = "Daniel Wigdor and Chia Shen and Clifton Forlines and Ravin Balakrishnan",
	booktitle     = "{Proceedings of the 25th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/1240624.1240701",
	isbn          = "978-1-59593-593-9",
	pages         = "473--482",
	publisher     = "{ACM}",
	title         = "{Perception of elementary graphical elements in tabletop and multi-surface environments}",
	year          = 2007,
}