T. Maciag, and D. Hepting. 2010 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology, 3, page 436--439. (August 2010)
B. Plank, and G. van Noord. Proceedings of the 2010 Workshop on NLP and Linguistics: Finding the Common Ground, page 25--33. Stroudsburg, PA, USA, Association for Computational Linguistics, (2010)