● McOrist S,Gebhart CJ,Boid R,Barns SM (1995). Characterization of Lawsonia intracellularis gen. nov., sp. nov., the obligately intracellular bacterium of porcine proliferative enteropathy. Int. J. Syst. Bacteriol.45, 820-5. ● Murray RG,Stackebrandt E (1995). Taxonomic note: implementation of the provisional status Candidatus for incompletely described procaryotes. Int. J. Syst. Bacteriol.45, 186-7.
