@book { TraditionelleWeiterbildungsmanahmenundELearning,
    title = "Traditionelle Weiterbildungsmaßnahmen und E-Learning",
    author = "Karsten {Naumann}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832457938",
    url = "https://m.diplom.de/document/221261"
}