@book { DietrkischeuropischenBeziehungen,
    title = "Die türkisch-europäischen Beziehungen",
    subtitle = "Eine unendliche Geschichte",
    author = "Metin {Aksoy}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135528"
}