@inproceedings{pme336559-beckschulteassessingma,
  title={Assessing Mathematical Modelling Competencies with Digital Portfolios},
  author={Beckschulte, Catharina and Quarder, Jascha and Rosendahl, Annika and Schukajlow, Stanislaw},
  booktitle={Proceedings of the International Group for the Psychology of Mathematics Education, Volume 1},
  year={2026},
  pages={155--162},
  publisher={Psychology of Mathematics Education (PME)},
  issn={2790-3648}
}