@book { GruppendynamikundPersonalfhrung,
    title = "Gruppendynamik und Personalführung",
    author = "Dominic  {Gaida}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640270637",
    url = "https://www.hausarbeiten.de/document/122198"
}