CHRISTOPOULOU1, ELENI, JOHN GAROFALAKIS, CHRISTOS MAKRIS1, YANNIS PANAGIS, ATHANASIOS PSARAS-CHATZIGEORGIOU, EVANGELOS SAKKOPOULOS, and AND ATHANASIOS TSAKALIDIS. 2003. “TECHNIQUES AND METRICS FOR IMPROVING WEBSITE STRUCTUREa”. Journal of Web Engineering 2 (1-2):090-104. https://journals.riverpublishers.com/index.php/JWE/article/view/4381.