@book { Fremdsprachenforschungheute,
    title = "Fremdsprachenforschung heute",
    author = "Sabine {Doff} and Torben {Schmidt}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103524"
}