@book { MehrsprachigkeitinfrankophonenRumen,
    title = "Mehrsprachigkeit in frankophonen Räumen",
    author = "Sabine {Bastian} and Elisabeth {Burr}",
    year = "2021",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1105749"
}