@book { IFRSfrKMUsEineAlternative,
    title = "IFRS für KMUs - Eine Alternative?",
    author = "Margarete {Witting}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842801653",
    url = "https://m.diplom.de/document/227938"
}