@book { MuttrotzKrise,
    title = "Mut trotz Krise",
    subtitle = "Innere Stärke in Zeiten täglicher Katastrophen-Meldungen. In 3 Schritten raus aus dem Gefühl der Ohnmacht",
    author = "Dr. Sabine {Nunius}",
    year = "2024",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1506047"
}