@book { Die5MarkBenzinpreisforderung,
    title = "Die 5-Mark-Benzinpreisforderung",
    author = "Stephan {Lorenz}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832423452",
    url = "https://m.diplom.de/document/218159"
}