Manuela Waldner Jörg Hauber Jürgen Zauner Michael Haller Mark Billinghurst Tangible tiles: design and evaluation of a tangible user interface in a collaborative tabletop setup. 151-158 2006 OZCHI http://doi.acm.org/10.1145/1228175.1228203 conf/ozchi/2006 db/conf/ozchi/ozchi2006.html#WaldnerHZHB06