Rudi Belotti Corsin Decurtins Michael Grossniklaus Moira C. Norrie Alexios Palinginis Modelling Context for Information Environments. 43-56 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3272&spage=43 2004 conf/caise/2004umics UMICS db/conf/caise/umics2004.html#BelottiDGNP04