In: Wolfgang Nejdl; Judy Kay; Pearl Pu; Eelco Herder (Hrsg.). Proceedings of the 5th International Conference on Adaptive Hypermedia and Adaptive Web-Based Systems. International Conference on Adaptive Hypermedia and Adaptive Web-Based Systems (AH-08), 5th, July 29 - August 1, Hannover, Germany, Pages 288-291, Lecture Notes in Computer Science (LNCS), Vol. 5149, ISBN 978-3-540-70984-8, Springer, 2008.
