@book { DieGeschichtederErwachsenenbildung,
    title = "Die Geschichte der Erwachsenenbildung",
    author = "Alla {Ujkanovic}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640770823",
    url = "https://www.hausarbeiten.de/document/162786"
}