G. Moreno, C. A. de M. Lopes, A. F. Gottschalk, and J. R. Modolo, “Incidence and characterization of mastitic bovine milk antimicrobial multi-drug resistant bacteria in middle west region of São Paulo, Brazil”, Braz. J. Vet. Res. Anim. Sci., vol. 34, no. 4, pp. 207–210, Aug. 1997, doi: 10.11606/issn.2318-3659.v34i4p207-210.