@book { DerInsolvenzplanalsSanierungsinstrument,
    title = "Der Insolvenzplan als Sanierungsinstrument",
    author = "Florian {Rottgardt}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832430078",
    url = "https://m.diplom.de/document/218725"
}