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Nagel, L. (2012). Using the CoI to Evaluate Different Blended Learning Approaches: Achieving Teaching, Cognitive and Social Presence in Large Post-graduate Online Courses. In T. Amiel & B. Wilson (Eds.), Proceedings of EdMedia 2012--World Conference on Educational Media and Technology (pp. 2736-2745). Denver, Colorado, USA: Association for the Advancement of Computing in Education (AACE).