J. Reynar, и A. Ratnaparkhi. Proceedings of the fifth conference on Applied natural language processing, стр. 16--19. Stroudsburg, PA, USA, Association for Computational Linguistics, (1997)
K. Macherey, A. Dai, D. Talbot, A. Popat, и F. Och. Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies (ACL-11), Portland, OR, (2011)