@book { DerSprachgebrauchderUngarninderSchweiz,
    title = "Der Sprachgebrauch der Ungarn in der Schweiz",
    author = "Nóra {Tátrai Infanger}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095229"
}