A. Popescul, L. Ungar, D. Pennock, und S. Lawrence. Proceedings of the 17th Conference on Uncertainty in Artificial Intelligence, Seite 437--444. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (August 2001)
Y. Han, und J. Tang. Proceedings of the 21th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, Seite 407--416. New York, NY, USA, ACM, (2015)