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- Document type:
- Buchbeitrag
- Author(s):
- Lehner, M.; Reiss, K.
- Title:
- Difficulty generating factors at university level: Comparing variations of tasks
- Pages contribution:
- p. 232
- Editor:
- W. Ho, T. Toh, ; B. Choy
- Book title:
- Proceedings of the 41st Conference of the International Group for the Psychology of Mathematics Education. 1
- Publisher:
- PME
- Publisher address:
- Singapur
- Year:
- 2017
- Reviewed:
- ja
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