● Noguchi H (1918). MORPHOLOGICAL CHARACTERISTICS AND NOMENCLATURE OF LEPTOSPIRA (SPIROCHAETA) ICTEROHAEMORRHAGIAE (INADA AND IDO). J. Exp. Med.27, 575-92. ● Wolbach SB,Binger CA (1914). Notes on a filterable Spirochete from fresh Water. Spirocheta biflexa (new Species). J. Med. Res.30, 23-26.1. ● Faine S,Stallman ND (1982). Amended descriptions of the genus Leptospira Noguchi 1917 and the species L. interrogans (Stimson 1907) Wenyon 1926 and L. biflexa (Wolbach and Binger 1914) Noguchi 1918. Int. J. Syst. Bacteriol.32, 461-463.
