@book { EineEinfhrungindiePhilosophischeAnthropologie,
    title = "Eine Einführung in die Philosophische Anthropologie",
    author = "Heinz {Witteriede}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106740"
}