Masahiro Watanabe Motoi Okuda Teruo Matsuzawa Construction of a Prototype of a Volume Communications Environment. 158-162 2005 conf/pdcat/2005 PDCAT http://doi.ieeecomputersociety.org/10.1109/PDCAT.2005.107 db/conf/pdcat/pdcat2005.html#WatanabeOM05