Human computer interaction : 6th Latin American Conference, CLIHC 2013 Carrillo, Costa Rica, December 2-6, 2013 : proceedings - Collazos, César; Collazos, César; Liborio, Andréia; Liborio, Andréia; Rusu, Cristian; Rusu, Cristian (Lecture notes in computer science / series editors Gerhard Goos, Juris Hartmanis, Jan van Leeuwen ;, 2013)