@book { eHealthundTelemedizininsterreich,
    title = "eHealth und Telemedizin in Österreich",
    author = "Bernhard {Zach}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836631235",
    url = "https://m.diplom.de/document/226894"
}