GARCIA, M.; LEITE, D.; YANO, T.; CASTRO, A. F.; SHENK, M. A. Evaluation of an oil emulsified vaccine against bovine colibacillosis using semi-purified K99-F41 adhesins. Brazilian Journal of Veterinary Research and Animal Science, v. 31, n. 3-4, p. 225-232, 3 dez. 1994.