@book { ImplementierungeinesQualittsmanagementsystemsnachDINENISO90012008,
    title = "Implementierung eines Qualitätsmanagementsystems nach DIN EN ISO 9001:2008",
    author = "Michael {Graner}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842802094",
    url = "https://m.diplom.de/document/227950"
}