@book { IntegrationdurchFamiliennachzug,
    title = "Integration durch Familiennachzug",
    author = "Cordelia {Carlitz}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b16543",
    url = "https://www.peterlang.com/document/1057378"
}