Blagitz, Maiara Garcia, et al. “Effect of Freezing and Preincubaton on Isolation of Coagulase-Negative Staphylococci from ewes’ Milk Samples”. Semina: Ciências Agrárias, vol. 32, no. 2, July 2011, pp. 733-8, doi:10.5433/1679-0359.2011v32n2p733.