1Dirkjan HE J, Veeger MSC, Luc HV, et al. The effect of rear wheel camber in manual wheelchair propulsion. J Re- habilitation Research and Development, 1989, 26(2): 37-46.
2Trudel G, Kirby RL, Ackroyd-Stolarz SA, et al. Effects of rear-wheel camber on wheelchair stability. Arch Phys Med Rehabilitation, 1997, 78(1): 78-81.