@book { DieNarzissmusBilanz,
    title = "Die Narzissmus-Bilanz",
    subtitle = "Vom Schaden und Nutzen toxischer Charaktere in Organisationen",
    author = "Marion {Thiel} and Sylvia {Pietzko}",
    year = "2024",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1549290"
}