@book { DieZahnarztpraxisderZukunft,
    title = "Die Zahnarztpraxis der Zukunft",
    author = "Sigrid {Hertz-Eichenrode, geb. Basedow}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832473976",
    url = "https://m.diplom.de/document/222684"
}