@book { EinfhrungindieZahnerhaltung,
    title = "Einführung in die Zahnerhaltung",
    author = "Elmar {Hellwig} and Edgar {Schäfer} and Joachim {Klimek} and Thomas {Attin}",
    year = "2023",
    publisher = "Deutscher Ärzteverlag",
    address = "Köln, Deutschland",
    doi = "10.47420/9783769137859",
    url = "https://deutscheraerzteverlag.openpublishing.com/document/1360906"
}