@book { DerLebensborn,
    title = "Der Lebensborn",
    author = "Claudia {Sandke}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832494599",
    url = "https://m.diplom.de/document/224590"
}