@book { DieZukunftdeslebenslangenLernensTheFutureofLifelongLearning,
    title = "Die Zukunft des lebenslangen Lernens- The Future of Lifelong Learning",
    author = "Björn {Paape} and Karl {Pütz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093680"
}