@book { KommunikationsinstrumentederLEGOGruppe,
    title = "Kommunikationsinstrumente der LEGO Gruppe",
    author = "Larisa {Schmidt}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640841974",
    url = "https://www.hausarbeiten.de/document/167594"
}