Competency Profiles of PCK Using Unsupervised Learning: What Implications for the Structures of pPCK Emerge From Non-Hierarchical Analyses?
J. Zeller, J. Riese, Journal of Research in Science Teaching (2025).

Conceptualising and measuring domain-specific content knowledge of early childhood educators: A systematic review
J. Bruns, H. Gasteiger, C. Strahl, Review of Education 9 (2021) 500–538.

Mathematics-related Competence of Early Childhood Teachers Visiting a Continuous Professional Development Course: An Intervention Study
J. Bruns, L. Eichen, H. Gasteiger, Mathematics Teacher Education and Development (MTED) 19 (2017) 76–93.