S. Harper, C. Goble, and R. Stevens. Proceedings of the Fourth International Conference on Web Information Systems Engineering (WISE'03), page 200--209. Los Alamitos California, USA, IEEE Computer Society, (December 2003)
S. Harper, C. Goble, R. Stevens, and Y. Yesilada. Proceedings of the The Twelfth International World Wide Web Conference, New York, USA, ACM Press, (May 2003)
S. Harper. University of Manchester (UoM), Manchester, UK, Doctor of Philosophy in Computer Science, (June 2001)Now there's a funny story here. In short, I've lost the electronic copy. Got the paper one and it's lodged in two libraries so I did do it... but no personal pdf version..