Pepin, B., Rösken, B. & Törner, G. (2012). Approaches to mathematics teachers professional development – a northern european perspective. In G. Helga Gunnarsdóttir (Hrsg.), Proceedings of NORMA 11, the sixth Nordic conference on mathematics education, S. 679–685. Reykjavik: University of Iceland Press.
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Pepin, B., Rösken, B. & Törner, G. (2012). Approaches to mathematics teachers professional development – a northern european perspective. In G. Helga Gunnarsdóttir (Hrsg.), Proceedings of NORMA 11, the sixth Nordic conference on mathematics education, S. 679–685. Reykjavik: University of Iceland Press.

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