@book { berTugendundWerte,
    title = "Über Tugend und Werte",
    subtitle = "Beiträge von Andrzej Szczypiorski, Bozena Choluj und Heinrich Olschowsky36505",
    author = "Jan C. {Joerden}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094013"
}