Moneva, Penka, et al. “Endocrine Responses to Shearing Stress in Pregnant Ile De France Ewes With Low and High Basal Hematocrit Levels”. Bulgarian Journal of Agricultural Science, vol. 27, no. 5, Oct. 2021, pp. 990-5, https://agriacad.eu/ojs/index.php/bjas/article/view/2151.