M. Eirinaki, M. Vazirgiannis, и I. Varlamis. Proceedings of the Ninth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, стр. 99--108. New York, NY, USA, ACM, (2003)
A. Paranjape, R. West, L. Zia, и J. Leskovec. Proceedings of the Ninth ACM International Conference on Web Search and Data Mining, стр. 615--624. New York, NY, USA, ACM, (2016)