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IEEE Computer Graphics and Applications > 2017 > 37 > 2 > 8 - 10
IEEE Access > 2017 > 5 > 9935 - 9943
IEEE Access > 2017 > 5 > 4887 - 4899
IEEE Access > 2017 > 5 > 1382 - 1397
China Communications > 2016 > 13 > 12 > 90 - 96
IEEE Revista Iberoamericana de Tecnologias del Aprendizaje > 2016 > 11 > 4 > 220 - 226