Mazza, Riccardo and Dimitrova, Vania (2004) Visualising Student Tracking Data to Support Instructors in Web-Based Distance Education. UNSPECIFIED. In: 13th International World Wide Web Conference (WWW 2004) - Educational Track. New York 2004 May 17-22. ACM press, pp. 17-22. ISBN 1-58113-912-8