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IEEE Revista Iberoamericana de Tecnologias del Aprendizaje > 2015 > 10 > 2 > 43 - 50
IEEE/ACM Joint Conference on Digital Libraries > 267 - 276
IEEE Transactions on Learning Technologies > 2014 > 7 > 3 > 267 - 279
IEEE Revista Iberoamericana de Tecnologias del Aprendizaje > 2015 > 10 > 2 > 43 - 50
IEEE/ACM Joint Conference on Digital Libraries > 267 - 276
IEEE Transactions on Learning Technologies > 2014 > 7 > 3 > 267 - 279