1. The stand-up wheelchair;Bressler,1974
2. A standing wheelchair;Churchward;Aust Phy and Eng Sci in Medicine,1982
3. The biomechanical design of a walking appliance for a paraplegic adult;Henshaw;J of Med Eng and Tech,1977
4. Energy costs of propelling wheelchairs at various speeds: Cardiac response and effect on steering accuracy;Hildebrandt;Arch Phys Med Rehab,1970
5. Powered lower limb orthotics in paraplegia;Hughes;Paraplegia,1971