1. Published
   Krisen im Übergang: Der Übergang zur Hochschulmathematik aus transformatorisch-bildungswissenschaftlicher Perspektive

   Research output: Thesis › Doctoral thesis

2. Published
   Boxes and matches as a model for introducing variables in a sign language- oriented mathematics class

   Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review

3. Published
   Crisis-driven transformation in tertiary mathematics: A case study connecting TTE and ATD

   Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review

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