● Hiraishi A,Ueda Y (1994). Intrageneric Structure of the Genus Rhodobacter: Transfer of Rhodobacter sulfidophilus and Related Marine Species to the Genus Rhodovulum gen. nov. Int. J. Syst. Bacteriol. 44, 15-23.
● Imhoff JF,Trüper HG,Pfennig N (1984). Rearrangement of the Species and Genera of the Phototrophic "Purple Nonsulfur Bacteria". Int. J. Syst. Bacteriol. 34, 340-3.
