E. Agirre, E. Alfonseca, K. Hall, J. Kravalova, M. Pasca, и A. Soroa. Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics, стр. 19--27. Stroudsburg, PA, USA, Association for Computational Linguistics, (2009)
E. Agirre, E. Alfonseca, K. Hall, J. Kravalova, M. Pasca, и A. Soroa. Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics, стр. 19--27. Stroudsburg, PA, USA, Association for Computational Linguistics, (2009)