Ferreira, Jussara Rocha, et al. “Contribution to the Anatomic Study of the Dura-Mater of the Bradypus Torquatus (Linnaeus, 1758) E Bradypus Variegatus (Schinz, 1825)”. Brazilian Journal of Veterinary Research and Animal Science, vol. 42, no. 5, Oct. 2005, pp. 381-7, https://doi.org/10.11606/issn.1678-4456.bjvras.2005.26415.