@book { EuropeanMonetaryPolicyFocusingontheAimofPriceStability,
    title = "European Monetary Policy. Focusing on the Aim of Price Stability",
    author = "Michael {Frei}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656472308",
    url = "https://www.hausarbeiten.de/document/230776"
}