@book { AggressivesVerhaltenalsUnterrichtsstrung,
    title = "Aggressives Verhalten als Unterrichtsstörung",
    author = "Lisa {Kittler}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640789993",
    url = "https://www.hausarbeiten.de/document/164206"
}