1. Panel discussion: Mobilization of the stiffened proximal interphalangeal joint;Weckesser;J Bone Joint Surg [Am],1964
2. Injuries to the ligaments of the thumb and fingers;Moberg;Diagnosis, Treatment and Prognosis. Acta Chir Scand,1953
3. The proximal interphalangeal joint-anatomy and causes of stiffness in the fingers;Kuczynski;J Bone Joint Surg [Br],1968
4. Functional and surgical anatomy of the hand;Kaplan,1965