Magdalini Eirinaki Charalampos Lampos Stratos Paulakis Michalis Vazirgiannis Web personalization integrating content semantics and navigational patterns. 72-79 2004 conf/widm/2004 WIDM http://doi.acm.org/10.1145/1031453.1031468 db/conf/widm/widm2004.html#EirinakiLPV04