P. Fung, Z. Wu, Y. Yang, and D. Wu. TMI-2007: Proceedings of the 11 th International Conference on Theoretical and Methodological Issues in Machine Translation, page 75--84. Skövde, Sweden, (2007)
R. Hwa, P. Resnik, A. Weinberg, and O. Kolak. ACL '02: Proceedings of the 40th Annual Meeting on Association for Computational Linguistics, page 392--399. Morristown, NJ, USA, Association for Computational Linguistics, (2001)