Nicolas Roussel Helen Evans Heiko Hansen MirrorSpace: Using Proximity as an Interface to Video-Mediated Communication. 345-350 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3001&spage=345 2004 conf/pervasive/2004 Pervasive db/conf/pervasive/pervasive2004.html#RousselEH04