@book { DialektstruktureninGrenzlandschaften,
    title = "Dialektstrukturen in Grenzlandschaften",
    author = "Hans-Peter {Schifferle}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1117040"
}