@book { DieImplementierungdesQualittsmanagementsystemsQEPindenArztpraxenderSanaGesundheitszentrumGmbH,
    title = "Die Implementierung des Qualitätsmanagementsystems QEP® in den Arztpraxen der Sana Gesundheitszentrum GmbH",
    author = "Susann {Engelmann}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836625869",
    url = "https://m.diplom.de/document/226544"
}