C. Lu, X. Chen, und E. Park. Proceeding of the 18th ACM conference on Information and knowledge management, Seite 1545--1548. New York, NY, USA, ACM, (2009)
N. Vinh, J. Epps, und J. Bailey. ICML '09: Proceedings of the 26th Annual International Conference on Machine Learning, Seite 1073--1080. New York, NY, USA, ACM, (2009)
A. Shepitsen, J. Gemmell, B. Mobasher, und R. Burke. RecSys '08: Proceedings of the 2008 ACM conference on Recommender systems, Seite 259--266. New York, NY, USA, ACM, (2008)