@book { VonInnersterreichindieToskana,
    title = "Von Innerösterreich in die Toskana",
    author = "Susanne Helene {Betz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104657"
}