1. Biering-Sorensen, F, 1980 Classification of paralysed and amputee sportsmen. In H. Natvig (Ed.) Proceedings of the First International Medical Congress on Sports for the Disabled (pp. 44-54). Oslo; Royal Ministry of Church and Education, State Office for Youth and Sports.
2. Coutts, K D, Rhodes, E C, McKenzie, D C 1983 Maximal exercise responses of tetraplegics and paraplegics. Journal of Applied Physiology 55: 479–482.
3. Dawson, G A, William, S G, Rape, S M 1980 Heartrate and athletics. Sports 'N Spokes 6(1): 13–14.
4. Di Carlo S E, Supp, M D, Taylor, H C 1983 Effect of arm ergometry training on physical work capacity of individuals with spinal cord injuries. Physical Therapy 63: 1104–1107.
5. Hjeltnes, N, Vokac, Z 1979 Circulatory strain in everyday life of paraplegics. Scandinavian Journal of Rehabilitation Medicine 11: 67–73.