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[Bennedsen and Caspersen 2005] Bennedsen, J., and M.E. Caspersen. 2005. An investigation of potential success factors for an introductory model-driven programming course. Proceedings of the first international workshop on computing education research: 155–163.
[Bennedsen and Caspersen 2007] Bennedsen, J., and M.E. Caspersen. 2007. Failure rates in introductory programming. SIGCSE Bull. 39(2): 32–36.