"Johnson et al. (1984)" . "Johnson et al. (1984)" . "1984"^^ . . . "1984"^^ . "Johnson, R.C., Schmid, G.P., Hyde, F.W., Steigerwalt, A.G. & Brenner, D.J. 1984. Borrelia burgdorferi sp. nov.: etiologic agent of Lyme disease. International Journal of Systematic and Evolutionary Microbiology, 34(4): 496-497." . .