2024
• Ufer, S., Kaiser, A., Niklas, F., Gabler, L. (2024). I have three more than you, you have three less than me? Levels of flexibility in dealing with additive situations. Frontiers in Education 9, 1340322. doi: 10.3389/feduc.2024.1340322.

2026
• Kaiser, A., Stefan, U. (2026). Beginning third-grade students' manipulative-based understanding of the place-value position principle for two-digit and three-digit numbers. Proceedings of the 49th Conference of the International Group for the Psychology of Mathematics Education: Research Reports.

No peer review, these are the proceedings of the Annual Conference of the Society for Didactics of Mathematics in German-Speaking Countries (GDM)

2026
• Kaiser, A., Ufer, S. (2026). Typisierung von Fehlern bei Aufgaben zum Stellenwertprinzip - Eine Studie bei Drittklässler*innen.

2025
• Kaiser, A., Ufer, S. (2025). Schwierigkeitsgenerierende Merkmale in Aufgaben zum Bündelungsprinzip bei Schüler*innen der 3. Jahrgangsstufe.