1. Takamatsu T, Ohta S. Computers provide new opportunities for disabled. Chuohoki; 1990.
2. Methods & designs: Survey of eye movement recording methods;Young;Behav Res Methods Instrum,1975
3. Koga K. Mini handbook on eye movement experiments. ISL; 1998. p 25-120.
4. Eye gaze communication system for people with severe physical disabilities;Itoh;IEICE Trans Inf Syst,2000
5. Detection of the eye-focused character on moving syllabary by neural networks for ALS patients;Kanou;Trans IEE Japan,2002