Müller, P.M., Behr, J., Yada, T., Eells, R. , Leidig, T. and Hennemann , T. 2024. Collective Teacher Efficacy in Context of Students’ Externalizing Behavior Problems: A Systematic Review. International Journal of Special Education. 39, 2 (Dec. 2024). DOI:https://doi.org/10.52291/ijse.2024.39.27.