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IEEE Transactions on Education > 2015 > 58 > 3 > 194 - 202
IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 31 - 42
IEEE/ACM Transactions on Audio, Speech, and Language Processing > 2014 > 22 > 7 > 1208 - 1218
IEEE Transactions on Education > 2015 > 58 > 3 > 194 - 202
IEEE Transactions on Learning Technologies > 2015 > 8 > 1 > 31 - 42
IEEE/ACM Transactions on Audio, Speech, and Language Processing > 2014 > 22 > 7 > 1208 - 1218