R. Yan, M. Lapata, and X. Li. Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics: Long Papers - Volume 1, page 516--525. Stroudsburg, PA, USA, Association for Computational Linguistics, (2012)
Y. Duan, L. Jiang, T. Qin, M. Zhou, and H. Shum. Proceedings of the 23rd International Conference on Computational Linguistics, page 295--303. Stroudsburg, PA, USA, Association for Computational Linguistics, (2010)
A. Ritter, S. Clark, Mausam, and O. Etzioni. Proceedings of the Conference on Empirical Methods in Natural Language Processing, page 1524--1534. Stroudsburg, PA, USA, Association for Computational Linguistics, (2011)