Ciccarelli FD, Doerks T, von Mering C, Creevey CJ, Snel B, Bork P (2006). "Toward automatic reconstruction of a highly resolved tree of life". Science311 (5765): 1283–7. PMID16513982. doi:10.1126/science.1123061.
G. Wächtershäuser (1998). "Towards a reconstruction of ancestral genomes by gene cluster alignment". System. Appl. Microbiol.21 (4): 473–477. doi:10.1016/S0723-2020(98)80058-1..
Woese C, Fox G (1977). "Phylogenetic structure of the prokaryotic domain: the primary kingdoms". Proc Natl Acad Sci U S A74 (11): 5088–90. PMID270744. doi:10.1073/pnas.74.11.5088.
Ciccarelli FD, Doerks T, von Mering C, Creevey CJ, Snel B, Bork P (2006). "Toward automatic reconstruction of a highly resolved tree of life". Science311 (5765): 1283–7. PMID16513982. doi:10.1126/science.1123061.
Valas, R. E.; Bourne, P. E. (2011). "The origin of a derived superkingdom: How a gram-positive bacterium crossed the desert to become an archaeon". Biology Direct 6: 16. doi:10.1186/1745-6150-6-16. PMC 3056875. PMID 21356104. //www.ncbi.nlm.nih.gov/pmc/articles/PMC3056875/.
Woese C, Fox G (1977). "The concept of cellular evolution". J Mol Evol. PMID903983.
Woese C, Fox G (1977). "Phylogenetic structure of the prokaryotic domain: the primary kingdoms". Proc Natl Acad Sci U S A74 (11): 5088–90. PMID270744. doi:10.1073/pnas.74.11.5088.