References
- DeHaven K.E: The conservative management of patellofemoral pain, in American Academy of Orthopedic Surgeons: Symposium on the Athlete's Knee: Surgical Repair and Reconstruction, St. Louis, CV Mosby, 1980, pp 50–59
- Knight KL: Knee rehabilitation by the daily adjustable progressive resistive exercise technique. Am J Sports Med 7: 336–337, November-December 1979