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IEEE MultiMedia > 2011 > 18 > 1 > 8 - 10
IEEE Transactions on Learning Technologies > 2010 > 3 > 1 > 68 - 81
IEEE Transactions on Learning Technologies > 2010 > 3 > 1 > 33 - 44
IEEE MultiMedia > 2011 > 18 > 1 > 8 - 10
IEEE Transactions on Learning Technologies > 2010 > 3 > 1 > 68 - 81
IEEE Transactions on Learning Technologies > 2010 > 3 > 1 > 33 - 44