Aleksander Binemann-Zdanowicz Roland Kaschek Klaus-Dieter Schewe Bernhard Thalheim Context-Aware Web Information Systems. 37-48 2004 conf/apccm/2004 APCCM http://crpit.com/confpapers/CRPITV31Binemann.pdf db/conf/apccm/apccm2004.html#Binemann-ZdanowiczKST04