@inproceedings{rohs2008a,
	Author = {Christian Kray and Michael Rohs and Jonathan Hook and Sven Kratz},
	Booktitle = {3rd IEEE Workshop on Tabletops and Interactive Surfaces (IEEE Tabletop 2008)},
	Month = {oct},
	Title = {Group Coordination and Negotiation through Spatial Proximity Regions around Mobile Devices on Augmented Tabletops},
	Year = {2008}}