Garth Shoemaker Leah Findlater Jessica Q. Dawson Kellogg S. Booth Mid-air text input techniques for very large wall displays. 231-238 2009 Graphics Interface http://doi.acm.org/10.1145/1555880.1555931 conf/graphicsinterface/2009 db/conf/graphicsinterface/graphicsinterface2009.html#ShoemakerFDB09