@book { JakobArjouni,
    title = "Jakob Arjouni",
    author = "Ambros {Waibel}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832425951",
    url = "https://m.diplom.de/document/218383"
}