@book { SprachkontaktSprachvariationMigrationMethodenfragenundProzessanalysen,
    title = "Sprachkontakt, Sprachvariation, Migration: Methodenfragen und Prozessanalysen",
    author = "Thomas {Stehl} and Claudia {Schlaak} and Lena {Busse}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01912-4",
    url = "https://www.peterlang.com/document/1047377"
}