B. Zapirain, E. Agirre, und L. Màrquez. Proceedings of the ACL-IJCNLP 2009 Conference Short Papers, Seite 73--76. Suntec, Singapore, Association for Computational Linguistics, (August 2009)
D. Roth, M. Sammons, und V. Vydiswaran. Proceedings of the ACL-IJCNLP 2009 Conference Short Papers, Seite 57--60. Suntec, Singapore, Association for Computational Linguistics, (August 2009)
N. Chambers, und D. Jurafsky. Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th International Joint Conference on Natural Language Processing of the AFNLP, Seite 602--610. Suntec, Singapore, Association for Computational Linguistics, (August 2009)
P. Koomen, V. Punyakanok, D. Roth, und W. tau Yih. Proceedings of the Ninth Conference on Computational Natural Language Learning (CoNLL-2005), Seite 181--184. Ann Arbor, Michigan, Association for Computational Linguistics, (Juni 2005)