@book { KrperspracheimBeruf,
    title = "Körpersprache im Beruf",
    author = "Janka {Bormann} and Fenna {Goldau}",
    year = "2007",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638836647",
    url = "https://www.hausarbeiten.de/document/78209"
}