Salvatore, V., A. Trirè, T. Gabriella, S. Pelotti, and M. Falconi. “Ultrastructural and Biochemical Analysis of in Vitro Odontoblast Differentiation”. Italian Journal of Anatomy and Embryology, vol. 116, no. 2, Nov. 2011, p. 160, https://oajournals.fupress.net/index.php/ijae/article/view/4734.