@book { SchreibvariationSprachregionKonfession,
    title = "Schreibvariation – Sprachregion – Konfession",
    author = "Paul {Rössler}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099781"
}