Delano, J. W. 2001. Redox history of the Earth's interior since ~3900 Ma: Implications for prebiotic molecules. Origins of Life and Evolution of the Biosphere 31: 311-341.
Kasting, J. F. 1993. Earth's early atmosphere. Science 259: 920-926.
Tian, F., O. B. Toon, A. A. Pavlov and H. De Sterck. 2005. A hydrogen-rich early Earth atmosphere. Science 308: 1014-1017. See also: Chyba, C. F. 2005. Rethinking Earth's early atmosphere. Science 308: 962-963.
Further Reading:
Ellington, Andrew D. and Matthew Levy. 2003. Gas, discharge, and the Discovery Institute. Reports of the National Center for Science Education 23(3-4): 39-40.