LETRAS: Communication with Lines, Triangles and Rectangles. - Guilherme Matheus A. Ramos; Victor O. N. Sales; César A. C. Teixeira (WebMedia, 2016)

A word-prediction eye-typing approach for Brazilian Portuguese entries using geometric movements. - Guilherme Matheus A. Ramos; Raíza Hanada; Maria da Graça Campos Pimentel; César A. C. Teixeira (SIGDOC, 2017)