@conference{olweus2009mobbing,
  author = {Olweus, Dan},
  booktitle = {Jugendhilfe und Schule. Handbuch für eine gelingende Kooperation.},
  editor = {Henschel, C. Schmitt & W. Stange A.},
  interhash = {5f6997698ed2b452005b340540ec35b6},
  intrahash = {8f28fe5283e2297ac31fbf8d324459de},
  pages = {247-266},
  publisher = {VS Verlag für Sozialwissenschaft},
  title = {Mobbing in Schulen: Fakten und Intervention},
  year = 2009
}