@book { Performancemessungundattribution,
    title = "Performancemessung und -attribution",
    author = "Oliver {Fochler}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832458058",
    url = "https://m.diplom.de/document/221273"
}