1. Aiken, L. S., West, S. G., & Reno, R. R. (1991). Multiple regression: Testing and interpreting interactions. Thousand Oaks, CA: Sage.
2. Algozzine, B., & Anderson, K. M. (2007). Tips for teaching: Differentiating instruction to include all students. Preventing school failure: Alternative education for children and youth, 51(3), 49–54. https://doi.org/10.3200/PSFL.51.3.49-54.
3. Anderman, L. H., Andrzejewski, C. E., & Allen, J. (2011). How do teachers support students' motivation and learning in their classrooms? Teachers College Record, 113(5), 969–1003.
4. Anderson, D. L., Lubig, J., & Smith, M. (2012). Meeting the needs of all students: How student teachers identify individualization. Education Research and Perspectives (Online), 39, 1–23.
5. Autorengruppe Bildungsberichterstattung (2018). Bildung in Deutschland 2018. Ein indikatorengestützter Bericht mit einer Analyse zu Wirkungen und Erträgen von Bildung [Education in Germany. An indicator-based report including an analysis of educational gains]. Bielefeld: W. Bertelsmann Verlag