@book { EntrepreneurialFailuresundderBadTippingPoint,
    title = "Entrepreneurial Failures und der Bad Tipping Point",
    author = "Martina {Dickstein}",
    year = "2020",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/964654"
}