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.

Ethical Considerations of Applying Robots in Kindergarten Settings: Towards an Approach from a Macroperspective
N.F. Tolksdorf, S. Siebert, I. Zorn, I. Horwath, K.J. Rohlfing, International Journal of Social Robotics (2020) 129–140.

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.