@book { VonderVisionzurNeupositionierung,
    title = "Von der Vision zur Neupositionierung",
    author = "Kevin {Wiegmann}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836648080",
    url = "https://m.diplom.de/document/227842"
}