@book { DieVisionalsWerkzeugcharismatischerLeader,
    title = "Die Vision als Werkzeug charismatischer Leader",
    author = "Marcel {Stöckli}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832471736",
    url = "https://m.diplom.de/document/222478"
}