@book { TeachersandTrainersinAdultandLifelongLearning,
    title = "Teachers and Trainers in Adult and Lifelong Learning",
    author = "Regina {Egetenmeyer} and Ekkehard {Nuissl}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-00320-8",
    url = "https://www.peterlang.com/document/1044668"
}