S. Szumlanski, and F. Gomez. Proceedings of the 19th ACM international conference on Information and knowledge management, page 19--28. New York, NY, USA, ACM, (2010)
S. Szumlanski, and F. Gomez. Proceedings of the Fifteenth Conference on Computational Natural Language Learning, page 190--199. Stroudsburg, PA, USA, Association for Computational Linguistics, (2011)
E. Gabrilovich, and S. Markovitch. Proceedings of the 20th international joint conference on Artifical intelligence, page 1606--1611. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (2007)
K. Suchecki, A. Salah, C. Gao, and A. Scharnhorst. (2012)cite arxiv:1203.0788Comment: Preprint of an article submitted for consideration in Advances in Complex Systems (2012) http://www.worldscinet.com/acs/, 19 pages, 7 figures.
J. Kunegis, A. Lommatzsch, and C. Bauckhage. Proceedings of the 18th international conference on World wide web, page 741--750. New York, NY, USA, ACM, (2009)