Adam Jatowt Yukiko Kawai Katsumi Tanaka Browsing Assistant for Changing Pages. 137-160 2009 Intelligent Agents in the Evolution of Web and Applications http://dx.doi.org/10.1007/978-3-540-88071-4_7 series/sci/2009-167 db/series/sci/sci167.html#JatowtKT09