@book { DanzigerUmgangsspracheundihreSpezifik,
    title = "Danziger Umgangssprache und ihre Spezifik",
    author = "Grazyna {Lopuszanska-Kryszczuk}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03457-8",
    url = "https://www.peterlang.com/document/1047737"
}