Eleni Christopoulou John D. Garofalakis Christos Makris Yannis Panagis Athanasios Psaras-Chatzigeorgiou Evangelos Sakkopoulos Athanasios K. Tsakalidis Techniques and Metrics For Improving Website Structure. 90-114 2003 2 J. Web Eng. 1-2 db/journals/jwe/jwe2.html#ChristopoulouGMPPST03