@book { SpuckenschlagenschikanierenMobbinginderSchule,
    title = "Spucken, schlagen, schikanieren. Mobbing in der Schule",
    author = "Sandra {Deichmann}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640248230",
    url = "https://www.hausarbeiten.de/document/120730"
}