Tomás Kroupa Petr Berka Tomás Kocka WISECON - An Intelligent Assistant for Buying Computers on the Internet. 167-175 2002 conf/ismis/2002 ISMIS http://link.springer.de/link/service/series/0558/bibs/2366/23660167.htm db/conf/ismis/ismis2002.html#KroupaBK02