Dode, Margot Alves Nunes, et al. “Effect of Follicle Size in Nuclear and Cytoplasmic Maturation of Oocytes from Zebu Cows”. Pesquisa Agropecuaria Brasileira, vol. 35, no. 1, Jan. 2000, pp. 207-14, doi:10.1590/S1678-3921.pab2000.v35.5692.