@book { GenderGroupIdentityandVariationintheBerlinUrbanVernacular,
    title = "Gender, Group Identity and Variation in the Berlin Urban Vernacular",
    author = "Sally A. {Johnson}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1117017"
}