@book { ItalienaufdemWegindieWhrungsunion,
    title = "Italien auf dem Weg in die Währungsunion",
    author = "Wolfgang {Winter}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832405861",
    url = "https://m.diplom.de/document/216520"
}