@book { FlopRisikenanhandvonPraxisbeispielen,
    title = "Flop-Risiken anhand von Praxisbeispielen",
    author = "Bernd {Ueding}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656149231",
    url = "https://www.hausarbeiten.de/document/190392"
}