@book { EvaluationvonOutdoorTeamentwicklungsseminaren,
    title = "Evaluation von Outdoor-Teamentwicklungsseminaren",
    author = "Roland {Krüger}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832445164",
    url = "https://m.diplom.de/document/220117"
}