@book { MonetaryPolicyinBrazil,
    title = "Monetary Policy in Brazil",
    author = "Matthias {Beer}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656495420",
    url = "https://www.hausarbeiten.de/document/233262"
}