1. Energy relations in the metabolism of autotrophic bacteria;BAAS-BECKING L. G.;Physiol. Revs.,1927
2. BICHOWSKY F. R. AND RoSSINI F. D. 1936 The thermochemistry of the chemical substances. Reinhold Publishing Corp. New York. Refer to p. 89.
3. CATALDI M. S. 1939 Estudio fisiologico y sistematico de algunas Chlamydobacteriales. Thesis University of Buenos Aires 96 pp.
4. Die Eisenbakterien. Gustav Fischer;CHOLODNY N.;Jena,1926
5. The role of microorganisms in acid mine drainage: A preliminary report;COLMER A. R.;Science,1947