D. Hillard, M. Ostendorf, and E. Shriberg. NAACL '03: Proceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology, page 34--36. Morristown, NJ, USA, Association for Computational Linguistics, (2003)
M. Galley, K. McKeown, J. Hirschberg, and E. Shriberg. ACL '04: Proceedings of the 42nd Annual Meeting on Association for Computational Linguistics, page 669+. Morristown, NJ, USA, Association for Computational Linguistics, (2004)