1. Carr, N. G. (1969). Growth of phototrophic bacteria and bluegreen algae. In: Norris, J. R., Ribbons, D. W. (eds.) Methods in microbiology. Academic Press, New York, p. 53?77
2. Haskins, E. F., Kihara, T. (1967). The use of spectrophotometry in ecological investigation of the facultatively anaerobic purple photosynthetic bacteria. Can. J. Microbiol. 13: 1283?1293
3. Imhoff, J. F. (1983).Rhodopseudomonas marina sp. nov., a new marine phototrophic purple bacterium. Syst. appl. Microbiol. 4: 512?521
4. Imhoff, J. F. (1988a). Anoxygenic phototrophic bacteria. In: Austin, B. (ed.) Methods in aquatic bacteriology. John Wiley & Sons, New York, p. 207?240
5. Imhoff, J. F. (1988b). Halophilic phototrophic bacteria. In: Rodriguez-Valera, F. (ed.) Halophilic bacteria, Vol. I. CRC Press, Boca Raton, Florida, p. 85?108