@book { DasechtedeutscheVolkslied,
    title = "Das «echte deutsche» Volkslied",
    author = "Iris {Mochar-Kircher}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098021"
}