1. Abs, H.
J., Hahn-Laudenberg,
K., Deimel,
D. & Ziemes, J.
F. (2017). Einleitung. In H. J. Abs, & K. Hahn-Laudenberg (Eds.), Das politische Mindset der 14-Jährigen [The political mindset of 14-year-olds] (pp. 9–26). Münster, Germany: Waxmann.
2. Student Participation and School Success—The relationship between participation, grades and bullying among 9th grade students in Sweden
3. Alsaker,
F. & Gutzwiller-Helfenfinger,
E. (2009). Social behavior and peer relationships of victims, bully-victims, and bullies in kindergarten. In S.
R. Jimerson, S.
M. Swearer, & D. L. Espelage (Eds.), The handbook of bullying in schools: An international perspective (pp. 87–100). New York, NY: Routledge.
4. American Psychological Association. (2018). Understanding educational psychology. Retrieved from http://www.apa.org/action/science/teaching-learning/index.aspx
5. A Ladder Of Citizen Participation