@book { LebenslangesLernenundBerufsbildung,
    title = "Lebenslanges Lernen und Berufsbildung",
    subtitle = "Eine Bedingungsanalyse",
    author = " {Anonym}",
    year = "1978",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070476"
}