Fernandes, Leise Gomes, et al. “Risk Factors Associated With BoHV-1 and BVDV Seropositivity in Buffaloes (Bubalus Bubalis) from the State of Paraiba, Northeastern Brazil”. Semina: Ciências Agrárias, vol. 37, no. 4, Aug. 2016, pp. 1929-36, doi:10.5433/1679-0359.2016v37n4p1929.