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\bibitem{Graf} Graf, S., Kinshuk, Zhang, Q., Maguire, P., \& Shtern, V. An Architecture for Dynamic Student Modelling of Learning Styles in Learning Systems and its Application for Adaptivity. In \textit{Proceedings of the International Conference on Cognition and Exploratory Learning in Digital Age} (pp. 103--110). Timisoara, Romania: IADIS.

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