@book { FinanzinstrumentenachIFRS,
    title = "Finanzinstrumente nach IFRS",
    subtitle = "Bilanzierung, Absicherung, Publizität",
    author = "Matthias {Schmidt} and Esther {Pittroff} and Bernd {Klingels}",
    year = "2012",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1220830"
}