Bernd Fröhlich Doug A. Bowman Hiroo Iwata Guest Editors' Introduction: Special Section on Virtual Reality. 420-421 2007 13 IEEE Trans. Vis. Comput. Graph. 3 http://dx.doi.org/10.1109/TVCG.2007.1043 db/journals/tvcg/tvcg13.html#FrohlichBI07