V. Kalnikait\.e, P. Ehlen, and S. Whittaker. Proceedings of the ACM 2012 conference on Computer Supported Cooperative Work, page 349--358. New York, NY, USA, ACM, (2012)
P. Ehlen, and M. Johnston. Proceedings of the 16th international conference on Intelligent user interfaces, page 435--436. New York, NY, USA, ACM, (2011)
M. Johnston, S. Bangalore, A. Stent, G. Vasireddy, and P. Ehlen. Proceedings of ICSLP---Interspeech 2002: 7th International Conference on Spoken Language Processing, Denver, CO, USA, page 2237-2240. (2002)