Pellitteri, R., M. Spatuzza, A. Russo, S. Stanzani, and D. Zaccheo. “Olfactory Ensheathing Cell: A Peculiar Glial Cell”. Italian Journal of Anatomy and Embryology, vol. 115, no. 1/2, Nov. 2010, p. 139, https://oajournals.fupress.net/index.php/ijae/article/view/4524.