A. Weichselbraun, G. Wohlgenannt, and A. Scharl. 9th International Workshop on Web Semantics, 21st International Conference
on Database and Expert Systems Applications (DEXA 2010), page 193--197. Bilbao, Spain, IEEE Computer Society Press, (August 2010)
B. Markines, C. Cattuto, and F. Menczer. Proceedings of the 5th International Workshop on Adversarial Information Retrieval on the Web, page 41--48. New York, NY, USA, ACM, (2009)