@book { BenchmarkingimVersicherungsunternehmen,
    title = "Benchmarking im Versicherungsunternehmen",
    author = "Josef {Kreiterling}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832403201",
    url = "https://m.diplom.de/document/216305"
}