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IEEE Revista Iberoamericana de Tecnologias del Aprendizaje > 2015 > 10 > 2 > 60 - 68
2010 International Conference on Electronics and Information Engineering > 2 > V2-454 - V2-458
IEEE Revista Iberoamericana de Tecnologias del Aprendizaje > 2015 > 10 > 2 > 60 - 68
2010 International Conference on Electronics and Information Engineering > 2 > V2-454 - V2-458