1. Rdcherches sur les organismes de la nitrification. Ann. inst;WINOGRADSKY S.;Pasteur,1890
2. tlber Schwefelbakterien;WINOGRADSKY S.;Botan. Zeitung,1887
3. Aislamiento de Beg-VASAYA, M. 1949 Microbiological formation of elemental sulphur in coastal areas. Fourth;CATALDI M. S.;Intern. Congr. Microbiol., Rept. of Proc.,1940
4. Microbiological formation of sulphide and sulphur. Sixth;BUTLIN K. R.;Intern. Congr. Microbiol., Symposium on Microbial Metabolism,1953
5. Biological origin of native sulfur in salt domes of Texas and Louisiana;JONES G. E.;Science,1956