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\bibitem{Chang_etal2014} Chang, T. - W., Kurcz, J., El-Bishouty, M. M., Kinshuk, \& Graf, S. (2014). Adaptive and Personalized Learning Based on Students{\textquoteright} Cognitive Characteristics. (pp. 77--97). Ubiquitous Learning Environments and Technologies. Springer Berlin Heidelberg.

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