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De Bra, P., Smits, D., Pechenizkiy, M. & Vasilyeva, E. (2008). Adaptivity in GRAPPLE: Adaptation in Any Way You Like. In C. Bonk, M. Lee & T. Reynolds (Eds.), Proceedings of E-Learn 2008--World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education (pp. 3654-3659). Las Vegas, Nevada, USA: Association for the Advancement of Computing in Education (AACE).