@book { Derdasdieoderwie,
    title = "Der, das, die – oder wie?",
    author = "Dieter {Krohn} and Karin {Krohn}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104921"
}