@book { WertschpfungdurchinterneKommunikation,
    title = "Wertschöpfung durch interne Kommunikation",
    author = "Sascha {Weimann}",
    year = "2007",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638592499",
    url = "https://www.hausarbeiten.de/document/66864"
}