1. Jordansen, I.K., Boedeker, S., Donegan, M., Oosthuizen, L., di Girolamo, M., Hansen, JP.: D7.2 Report on a market study and demographics of user population. Communication by gaze interaction (COGAIN), IST-2003-511598: Deliverable 7.2. (2005) http://www.cogain.org/results/reports/COGAIN-D7.2.pdf
2. Donegan, M., Oosthuizen, L., Bates, R., Daunys, G., Hansen, J.P., Joos, M., Signorile, I., Majaranta, P.: Providing eye control for those who need it most—a study on user requirements. (Abstract) In: Proceedings of ECEM13—13th European Conference on Eye Movements, Bern, Switzerland, August 2005 (2005)
3. Jeppesen, B.B., Andersen, J., Grønnegaard, A., Hauge, M., Kirkegaard, J., Seelen, B.: Speaking with the eyes. DVD (in English) (2004) http://www.thi-fyn.dk
4. Gazetalk 4.0 http://www.cogain.org/results/applications/gazetalk/ (2006)
5. Eye Gaze Interaction Group at The IT University of Copenhagen http://www.itu.dk/research/EyeGazeInteraction/ (2006)