@book { TotalQualityManagementintheoreticalandpracticalcontext,
    title = "Total Quality Management in theoretical and practical context",
    author = "Christina {Haring}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832477790",
    url = "https://m.diplom.de/document/223048"
}