@book { DieliterarischenknstlerischenundkulturellenQuellendesItalowesterns,
    title = "Die literarischen, künstlerischen und kulturellen Quellen des Italowesterns",
    author = "Matthias {Bürgel}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108441"
}