1. Cowell, H. R.: Diagnosis and management of peroneal spastic flatfoot. American Academy of Orthopaedic Surgeons Instructional Course Lectures, 24, 1975, p. 94.
2. The normal and abnormal calcaneal apophysis and tarsal navicular;Ferguson;Clin. Orthop.,1957
3. Infraction of the second metatarsal bone: A typical injury;Freiberg;Surg. Gynecol. Obstet.,1914
4. Anterior unstable ankle due to trauma;Frost;J. Bone Joint. Surg.,1966
5. Painful heels in children;Hughes;Surg. Gynecol. Obstet.,1948