@book { TotalCostofOwnershipalsInstrumentdesBeschaffungsmanagements,
    title = "Total Cost of Ownership als Instrument des Beschaffungsmanagements",
    author = "Stefanie {Brem, geb. Krämer}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836608466",
    url = "https://m.diplom.de/document/225514"
}