L. M. C. Pereira, P. R. de O. Bersano, and M. D. Lopes, “Influence of stages anestrous and diestrus in chromatin configuration in germinal vesicle of canine oocytes”, Braz. J. Vet. Res. Anim. Sci., vol. 50, no. 6, pp. 474–481, Dec. 2013, doi: 10.11606/issn.1678-4456.v50i6p474-481.