Ossa, F., Jantzer, V., Eppelmann, L., Parzer, P., Resch, F., & Kaess, M. (2021). Effects and moderators of the Olweus bullying prevention program (OBPP) in Germany. European child & adolescent psychiatry, 30(11), . https://doi.org/10.1007/s00787-020-01647-9
Chicago-Zitierstil (17. Ausg.)Ossa, Fanny, Vanessa Jantzer, Lena Eppelmann, Peter Parzer, Franz Resch, und Michael Kaess. "Effects and Moderators of the Olweus Bullying Prevention Program (OBPP) in Germany." European Child & Adolescent Psychiatry 30, no. 11 (2021). https://doi.org/10.1007/s00787-020-01647-9.
MLA-Zitierstil (9. Ausg.)Ossa, Fanny, et al. "Effects and Moderators of the Olweus Bullying Prevention Program (OBPP) in Germany." European Child & Adolescent Psychiatry, vol. 30, no. 11, 2021, https://doi.org/10.1007/s00787-020-01647-9.