Ursula Kretschmer Volker Coors Ulrike Spierling Dieter Grasbon Kerstin Schneider Isabel Rojas Rainer Malaka Meeting the spirit of history. 141-152 2001 conf/vast/2001 Virtual Reality, Archeology, and Cultural Heritage http://doi.acm.org/10.1145/584993.585016 db/conf/vast/vast2001.html#KretschmerCSGSRM01