● Yasuda PH,Steigerwalt AG,Sulzer KR,Kaufmann AF,Rogers F,Brenner DJ (1987). Deoxyribonucleic acid relatedness between serogroups and serovars in the family Leptospiraceae with proposals for seven new Leptospira species. Int. J. Syst. Bacteriol. 37, 407-415.
