Pearson A, Budin M, Brocks JJ «Phylogenetic and biochemical evidence for sterol synthesis in the bacterium Gemmata obscuriglobus». Proc. Natl. Acad. Sci. U.S.A., 100, 26, December 2003, pàg. 15352–7. DOI: 10.1073/pnas.2536559100. PMC: 307571. PMID: 14660793.
Pearson A, Budin M, Brocks JJ «Phylogenetic and biochemical evidence for sterol synthesis in the bacterium Gemmata obscuriglobus». Proc. Natl. Acad. Sci. U.S.A., 100, 26, December 2003, pàg. 15352–7. DOI: 10.1073/pnas.2536559100. PMC: 307571. PMID: 14660793.