Peter Géczy Noriaki Izumi Shotaro Akaho Kôiti Hasida Usability Analysis Framework Based on Behavioral Segmentation. 35-45 2007 conf/ecweb/2007 EC-Web http://dx.doi.org/10.1007/978-3-540-74563-1_4 db/conf/ecweb/ecweb2007.html#GeczyIAH07