@book { DiekonomischenEffekteeinereuropischenWhrungsunion,
    title = "Die ökonomischen Effekte einer europäischen Währungsunion",
    author = "Armin {Jans}",
    year = "1980",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1070916"
}