@book { AphasieKommunikationohneSprache,
    title = "Aphasie - Kommunikation ohne Sprache?!",
    author = "Sarah {Henkel}",
    year = "2006",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638553636",
    url = "https://www.hausarbeiten.de/document/62039"
}