1. Downey MS. Tarsal coalition. In McGlamry's Comprehensive Textbook of Foot and Ankle Surgery, ed 3, pp 993–1031, edited by AS Banks, MS Downey, DE Martin, SJ Miller, Lippincott Williams & Wilkins, Philadelphia, PA, 2001.
2. The inheritance of tarsal coalition and it relationship to spastic flat foot;Leonard;J Bone Joint Surg Br,1974
3. Tarsal coalitions and peroneal spastic flat foot;Mosier;J Bone Joint Surg Am,1984
4. Anomalous structures in the developing human foot;Harris;Anat Rec,1955
5. Calcaneus secundarius presenting as calcaneonavicular coalition: a case report;Ceroni;J Foot Ankle Surg,2006