Ciccarelli, A., S. Mantini, B. Colaicomo, S. Sorrenti, R. Scrimaglio, and M. Ripani. “Geometric Morphometric Approach in the Study of the Footprint Variation in Children Between 6 and 12 Years of Age”. Italian Journal of Anatomy and Embryology, vol. 116, no. 2, Nov. 2011, p. 43, https://oajournals.fupress.net/index.php/ijae/article/view/4617.