@book { MetaphertheorienderAntikeundihrephilosophischenPrinzipien,
    title = "Metaphertheorien der Antike und ihre philosophischen Prinzipien",
    author = "Dieter {Lau}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101870"
}