O. Gallo, Arteaga, S., and Davis, J.,
“A Camera-based Pointing Interface for Mobile Devices”, in
Proceedings of the International Conference of Image Processing (ICIP), San Diego, 2008, pp. 1420-1423.
R. Manduchi and Coughlan, J.,
“Portable and Mobile Systems in Assistive Technology”, in
Proceedings of the 11th international conference on Computers Helping People with Special Needs (ICCHP '08), Berlin, Heidelberg, 2008, pp. 1078–1080.