Mieczyslaw A. Klopotek Slawomir T. Wierzchon Krzysztof Ciesielski Michal Draminski Dariusz Czerski Map-Based Recommendation of Hyperlinked Document Collections. 1-10 2006 conf/ecweb/2006 EC-Web http://dx.doi.org/10.1007/11823865_1 db/conf/ecweb/ecweb2006.html#KlopotekWCDC06