Kasting, J.F. and J.L. Siefert. 2002. Life and the evolution of Earth’s atmosphere. Science 296: 1066–1068.
57
Waters, E. et al. 2003. The genome of Nanoarchaeum equitans: Insights into early archaeal evolution and derived parasitism. Proc. Nat. Acad. Sci. 100: 12984–12988.
