@book { TrainingskonzeptTeambildung,
    title = "Trainingskonzept Teambildung",
    subtitle = "Vertrauen und Kommunikation im Projektteam",
    author = "Rebecca {Fleckenstein}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842806924",
    url = "https://m.diplom.de/document/228153"
}