@book { WomenonBoards,
    title = "Women on Boards?",
    author = "Katharina {Radloff}",
    year = "2011",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842821323",
    url = "https://m.diplom.de/document/228656"
}