D. Oberle, B. Berendt, A. Hotho, и J. Gonzalez. Advances in Web Intelligence, First International Atlantic Web Intelligence Conference, AWIC 2003, Madrid, Spain, May 5-6, 2003, Proceedings, том 2663 из Lecture Notes in Artificial Intelligence, стр. 142-154. Springer, (2003)
B. Berendt, A. Hotho, и G. Stumme. Proc. of the 1st Intl. Workshop on Representation and Analysis of Web Space, стр. 1--16. Technical University of Ostrava, (2005)