A. Giuglea, und A. Moschitti. Proceedings of the 44th Annual Meeting of the Association for Computational Linguistics (ACL 2006). July 17-21, 2006, Sydney, Australia, Association for Computational Linguistics, Morristown, NJ, USA, (2006)
F. Suchanek, M. Sozio, und G. Weikum. WWW '09: Proceedings of the 18th international conference on World wide web, Seite 631--640. New York, NY, USA, ACM, (2009)