@book { GrndefrdasScheiternvonStartups,
    title = "Gründe für das Scheitern von Start-ups",
    author = "Torsten {Jaeger}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832467241",
    url = "https://m.diplom.de/document/222099"
}