How to Use HTML Page Popularity to Improve a Web Site's Structure. - John D. Garofalakis; Panagiotis Kappos; Dimitris Mourlukos (WebNet, 1998)

Web Site Optimization Using Page Popularity. - John D. Garofalakis; Panagiotis Kappos; Dimitris Mourloukos (IEEE Internet Comput., 1999)