@book { DasProblemdesbelsinderWelt,
    title = "Das Problem des Übels in der Welt",
    subtitle = "Vom interdisziplinären Standpunkt",
    author = "Paul {Weingartner}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099283"
}