@book { VerbaleundnonverbaleKommunikation,
    title = "Verbale und nonverbale Kommunikation",
    author = "Lukasz {Tyczkowski}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656022367",
    url = "https://www.hausarbeiten.de/document/179762"
}