1. Reliability of an isokinetic movement of the knee extensors;Johnson;Res Q,1978
2. Tendon and muscle ruptures;McMaster;J Bone Joint Surg,1933
3. Essentials of orthopaedics;Wiles,1965
4. Treatment of injuries to athletes;O'Donoghue,1970
5. Injuries to the knee joint;Smillie,1978