@book { ScheiternvonEntrepreneuren,
    title = "Scheitern von Entrepreneuren",
    author = "Mona I. {Thraen}",
    year = "2011",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842809819",
    url = "https://m.diplom.de/document/228267"
}