@book { CoachingalsLernmglichkeitinderErwachsenenbildung,
    title = "Coaching als Lernmöglichkeit in der Erwachsenenbildung",
    author = "Christoph {Themel}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832488833",
    url = "https://m.diplom.de/document/224060"
}