S. Middleton, N. Donnelly, and J. Ward. The Medical journal of Australia, 177 (7):
398-9; author reply 399(October 2002)3019<m:linebreak></m:linebreak>Dissenys de cluster.
K. Papineni, S. Roukos, T. Ward, and W. Zhu. Computational Linguistics (ACL), Proceedings of the 40th Annual Meeting of the Association for Computational Linguistics (ACL), Philadelphia, page 311-318. (2002)