@book { GoetheDichterundDenker,
    title = "Goethe: Dichter und Denker",
    subtitle = "Essays über Goethe",
    author = " {Anonym}",
    year = "1976",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1069771"
}