@book { Possible,
    title = "Possible",
    subtitle = "Wie wir im Zeitalter des Konflikts überleben (und gedeihen)",
    author = "William {Ury} and Jim {Collins} and Jürgen {Neubauer}",
    year = "2026",
    publisher = "C.H.Beck",
    address = ", Deutschland",
    url = "https://vahlen.openpublishing.com/document/1738492"
}