Karl Aberer, Zhiyong Peng, Elke A. Rundensteiner, Yanchun Zhang, Xuhui Li: Web Information Systems - WISE 2006, 7th International Conference on Web Information Systems Engineering, Wuhan, China, October 23-26, 2006, Proceedings. Lecture Notes in Computer Science 4255, Springer 2006, ISBN 3-540-48105-2