@book { BilanzierungnachHGBinSchaubildern,
    title = "Bilanzierung nach HGB in Schaubildern",
    subtitle = "Die Grundlagen von Jahresabschlüssen kompakt und visuell",
    author = "Reinhard {Heyd} and Michael {Beyer} and Daniel {Zorn}",
    year = "2020",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1221312"
}