M. Collins. Proceedings of the eighth conference on European chapter of the Association for Computational Linguistics, page 16--23. Stroudsburg, PA, USA, Association for Computational Linguistics, (1997)
W. Jin, H. Ho, and R. Srihari. Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining, page 1195--1204. New York, NY, USA, ACM, (2009)