@book { ControllingohneController,
    title = "Controlling ohne Controller?",
    author = "Péter {Horváth} and Thomas {Reichmann} and Ulrike {Baumöl} and Andreas {Hoffjan} and Klaus {Möller} and Burkhard {Pedell}",
    year = "2017",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1221040"
}