@book { KundenakquiseviaSocialMedia,
    title = "Kundenakquise via Social Media",
    author = "Larissa {Wolterhoff}",
    year = "2016",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/335390"
}