@book { OutdoorTrainingChancenundGrenzeneinerPersonalentwicklungsmethode, title = "Outdoor Training - Chancen und Grenzen einer Personalentwicklungsmethode", author = "Michael {Kraus}", year = "2004", publisher = "Diplom.de", address = "Hamburg, Deutschland", doi = "10.3239/9783832479398", url = "https://m.diplom.de/document/223184" }