@book { UmsatzsteuerinderInsolvenz,
    title = "Umsatzsteuer in der Insolvenz",
    author = "Gabriela {Krosch}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832495046",
    url = "https://m.diplom.de/document/224634"
}