Younes Hafri Chabane Djeraba Peter L. Stanchev Bruno Bachimont A Web User Profiling Approach. 227-238 2003 conf/apweb/2003 APWeb http://link.springer.de/link/service/series/0558/bibs/2642/26420227.htm db/conf/apweb/apweb2003.html#HafriDSB03