1. A voice-controlled mechanical arm for immobilised patients;Campbell,1979
2. Voice controlled wheelchair;Clark;Archives of Physical Medicine and Rehabilitation,1977
3. Speech recognition and control system for the severely disabled;Cohen;Journal of Biomedical Engineering,1980
4. Voice controlled aids for the handicapped;Creasey,1982
5. Speech technology: implications for biomedical engineering;Damper;Journal of Medical Engineering and Technology,1982