@book { GermanPolicyonImmigrationfromEthnostoDemos,
    title = "German Policy on Immigration – from Ethnos to Demos?",
    author = "Marianne {Takle}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1102999"
}