@book { ZeitungausderLeitung,
    title = "Zeitung aus der Leitung",
    author = "Tim {Rathmann}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832444730",
    url = "https://m.diplom.de/document/220076"
}