J. R. Ferreira, V. L. de Oliveira, K. M. de Oliveira, and M. A. de Oliveira, “Contributions to the study of the macroscopy anatomy of Bradypus torquatus (Linnaeus, 1758) and Bradypus variegatus (Schinz, 1825) brain”, Braz. J. Vet. Res. Anim. Sci., vol. 42, no. 6, pp. 397–404, Dec. 2005, doi: 10.11606/issn.1678-4456.bjvras.2005.26397.