Viana, L. et al. 2007. In vitro susceptibility to antimicrobials of Mannheimia haemolytica and Pasteurella multocida isolated from healthy ovine and with respiratory diseases. Brazilian Journal of Veterinary Research and Animal Science. 44, supl. (Dec. 2007), 111–114. DOI:https://doi.org/10.11606/issn.1678-4456.bjvras.2007.26598.