@book { DasnationalsozialistischeKonzentrationslagerBuchenwald,
    title = "Das nationalsozialistische Konzentrationslager Buchenwald",
    author = "Steffen {Riedel}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/217088"
}