ZYGRAICH, N. Criteria for live virus vaccines against respiratory infections. The Bovine Practitioner, [S. l.], v. 1981, n. 16, p. 109–113, 1981. DOI: 10.21423/bovine-vol1981no16p109-113. Disponível em: https://bovine-ojs-tamu.tdl.org/bovine/article/view/1983. Acesso em: 10 oct. 2024.