@book { DieDeutscheBundesbankunddieEuropischeZentralbank,
    title = "Die Deutsche Bundesbank und die Europäische Zentralbank",
    author = "Marco {Metzing}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832404031",
    url = "https://m.diplom.de/document/216378"
}