@book { GrenzenberwindendurchKultur,
    title = "Grenzen überwinden durch Kultur?",
    author = "Monika {Sonntag}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02599-6",
    url = "https://www.peterlang.com/document/1067479"
}