@book { CarnetsJeanPaulSartre,
    title = "Carnets Jean-Paul Sartre",
    subtitle = "Eine Moral in Situation",
    author = "Peter {Knopp} and Vincent {von Wroblewsky}",
    year = "2008",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103660"
}