Siqueira, Elton, Ellton Sales Barros, Leonardo Brandão Marques, and Dionne Cavalcante Monteiro.
" A Game with a Voice Recognizer for Teaching Children with Learning Difficulties in Reading and Writing." <em>Proceedings of the 38th Integrated Software and Hardware Seminar,
Natal/RN, 2011</em>. SBC, 2011,  
pp.1279-1292.