@book { WelchenBedarfhabenWerkstttenfrBehinderteanindividuellerSoftware,
    title = "Welchen Bedarf haben Werkstätten für Behinderte an individueller Software?",
    author = "Volker {Heilmann}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832418922",
    url = "https://m.diplom.de/document/217740"
}