References
- Cousins S., Koombes M., Hannah R., Forsyth D., Dean T., Foort S. The UBC Mobility Power Unit for Wheelchairs. Digest of Papers, 7th Canadian Medical & Biological Engineering Conference, Vancouver 1978; 123–124
- Durie N. D. Wheelchair modification to improve handling ease. Archives of Physical and Medical Rehabilitation 1979; 60: 82–3
- Durie N. D. A single-switch control for wheelchairs and other equipment. Medical Progress through Technology 1978; 6: 15–18