Sleep N.H, Meibom A., Fridriksson T., Coleman R.G, Bird D.K.  2004.  H2-rich fluids from serpentinization: geochemical and biotic implications. Proc Natl Acad Sci U S A. 101(35):12818-23.

Sleep N.H, Zahnle K..  2001.  Carbon dioxide cycling and implications for climate on ancient Earth. Journal of Geophysical Research-Planets. 106(E1):1373-1399.