R. J. JacobK. S. Karn 2003 Eye tracking in human-computer interaction and usability research: Ready to deliver the promises Mind 2 3 4
P. MajarantaK. J. Räihä 2007 Text entry by gaze: Utilizing eye-tracking Text entry systems: Mobility, accessibility, universality 175 187
D. PereraR. J. EalesK. Blashki 2009 Supporting the creative drive: investigating paralinguistic voice as a mode of interaction for artists with upper limb disabilities Universal Access in the Information Society 8 2 77 88