@book { SchreibenunterBedingungenvonMehrsprachigkeit,
    title = "Schreiben unter Bedingungen von Mehrsprachigkeit",
    author = "Dagmar {Knorr} and Annette {Verhein-Jarren}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01784-7",
    url = "https://www.peterlang.com/document/1045914"
}