2Further Reading: Douglas J & Ryan M (1987) A preschool severely disabled boy and his powered wheelchair: a case study. Child: care, health and development 13:303-309.

Nisbet P

(1989) The Smart Wheelchair. In Korba LW (ed.) International Inventory of Robotics Projects in the Health care Field. National Research Council Canada.

Paulsson K & Christofferson M

(1986) Psychosocial aspects of technical aids: how does independent mobility affect the psychosocial and development of children with physical disabilities? RESNA 27.