@book { ControllingstrategischerMedizintechnikInvestitionen,
    title = "Controlling strategischer Medizintechnik-Investitionen",
    author = "Ralf Peter {Jakisch}",
    year = "2007",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836604888",
    url = "https://m.diplom.de/document/228979"
}