David J. Roberts Robin Wolff Oliver Otto Dieter Kranzlmüller Christoph Anthes Anthony Steed Supporting social human communication between distributed walk-in displays. 81-88 2004 conf/vrst/2004 VRST http://doi.acm.org/10.1145/1077534.1077550 db/conf/vrst/vrst2004.html#RobertsWOKAS04