@book { ControllingmitSAPBusinessByDesign,
    title = "Controlling mit SAP Business ByDesign",
    author = "Alexander {Baumeister} and Claudia {Floren} and Ulrike {Sträßer}",
    year = "2014",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1220910"
}