@book { SonderpostennachdemDMarkbilanzgesetz,
    title = "Sonderposten nach dem D-Markbilanzgesetz",
    author = "Stephan {Knabe}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832436056",
    url = "https://m.diplom.de/document/219259"
}