@book { Goethe,
    title = "Goethe",
    subtitle = "Homo homini lupus – Homo homini deus- Über deutsche Dichtungen 2",
    author = "Wolfgang {Wittkowski}",
    year = "2004",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1097099"
}