@book { Kommunikation,
    title = "Kommunikation",
    author = "Florian {Kliche} and Andreas {Augustin}",
    year = "2006",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640086719",
    url = "https://www.hausarbeiten.de/document/110503"
}