@book { PharmaceuticalBenefitManagement,
    title = "Pharmaceutical Benefit Management",
    author = "Ralf {Kuhn}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832403560",
    url = "https://m.diplom.de/document/216337"
}