@book { StrungenimUnterricht,
    title = "Störungen im Unterricht",
    author = "Dennis {Kaiser}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640978274",
    url = "https://www.hausarbeiten.de/document/176509"
}