@book { StrungenhabenVorrang,
    title = "Störungen haben Vorrang",
    author = "Ansgar {Hoffmann}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656419853",
    url = "https://www.hausarbeiten.de/document/213702"
}