@book { FundraisingimInternet,
    title = "Fundraising im Internet",
    author = "Stefanie {Neumann}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832441791",
    url = "https://m.diplom.de/document/219800"
}