Gongalves, E., I. Vugman, C. Oliver, and M. Jamur. “epopulation and aturation of uinea ig esentery ast ells:A ight and lectrón icroscopio tudy”. cta icroscopica, ol. 8, no. 1, June 1999, pp. 33-39, https://acta-microscopica.org/acta/article/view/159.