@article{article7a869221,
title   = {Deoxyribonucleic Acid (DNA)relatedness between serogroups and serovars in the family Leptospiraceae with proposals for seven new Leptospira species},
author = {Yasuda, Paulo Hideki and Steigerwalt, Arnol G. and Sulzer, K. R. and Kaufmann, A. F. and Roger, F. and Brenner, D. J.},
year = {1987},
journal   = {International Journal of Systematic Bacteriology}
}