1. An electromyographic study of knee motion in normal gait;Kettlecamp;J Bone Joint Surg,1970
2. Bioengineering analysis of force actions transmitted by the knee joint;Morrison;J Biomed Eng,1968
3. Function of the knee joint in various activities;Morrison;J Biomed Eng,1969
4. Disorders of the patellofemoral joint;Ficat,1977
5. Conservative treatment of patellofemoral pain;Fisher;Orthop Clin N Am,1986