Florian Block Albrecht Schmidt Nicolas Villar Hans-Werner Gellersen Towards a Playful User Interface for Home Entertainment Systems. 207-217 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3295&spage=207 2004 conf/eusai/2004 EUSAI db/conf/eusai/eusai2004.html#BlockSVG04