@book { KulturNationEuropa,
    title = "Kultur – Nation – Europa",
    author = "Volker {Caysa} and Bartlomiej {Kozera} and Justus H. {Ulbricht}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104847"
}