@book { ZurGeldmengensteuerungderDeutschenBundesbank,
    title = "Zur Geldmengensteuerung der Deutschen Bundesbank",
    author = "Martin {Eberstein}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832412401",
    url = "https://m.diplom.de/document/217155"
}