1. Osteoarthrosis of the knee joint in sportsmen;Adams, I.D.,1973
2. Osteoarthrosis of the knee. A radiographic investigation;Ahlback, S.;Acta Radiologica,1968
3. The mechanism of injury and distribution of 3000 fractures and dislocations caused by parachute jumping;Ciccone, R.; Richman, R.M.;Journal of Bone and Joint Surgery,1958
4. The hazards of parachuting;Essex-Lopresti, P.;British Journal of Surgery,1946
5. Parachutist;Heam, P.,1976