Santos, Joabel Tonellotto dos, et al. “Effect of Fixative Type and Fixation Time on the Morphology of Bovine Preantral Ovarian Follicles”. Semina: Ciências Agrárias, vol. 33, no. 1, Apr. 2012, pp. 297-04, doi:10.5433/1679-0359.2012v33n1p297.