S. Mohammad, B. Dorr, M. Egan, A. Hassan, P. Muthukrishan, V. Qazvinian, D. Radev, and D. Zajic. Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics, page 584--592. Stroudsburg, PA, USA, Association for Computational Linguistics, (2009)
M. Yuen, L. Chen, and I. King. Proceedings of the International Conference on Computational Science and Engineering, CSE '09, 4, page 723--728. (August 2009)
A. Quinn, and B. Bederson. Proceedings of the 2011 annual conference on Human factors in computing systems, page 1403--1412. New York, NY, USA, ACM, (2011)
J. Poelmans, P. Elzinga, S. Viaene, and G. Dedene. Conceptual Structures: From Information to Intelligence, volume 6208 of Lecture Notes in Computer Science, Springer, Berlin/Heidelberg, (2010)
A. Dattolo, F. Ferrara, and C. Tasso. Proc. of the 3rd International Conference on Human System Interaction - HSI'2010, page 548--555. IEEE Press, (May 2010)