@book { InternationalFinancialReportingStandardsfrKleinundMittelunternehmen,
    title = "International Financial Reporting Standards für Klein- und Mittelunternehmen",
    author = "Martin {Frick}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836635974",
    url = "https://m.diplom.de/document/227202"
}