@book { FormenderprivatenPensionsvorsorge,
    title = "Formen der privaten Pensionsvorsorge",
    subtitle = "Ein Informationstext für LehrerInnen und SchülerInnen",
    author = "Michaela {Amtmann}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832454289",
    url = "https://m.diplom.de/document/220985"
}