Works Cited
Martin S. Silberberg, “Chemistry The Molecular Nature of Matter and Change Fifth Edition”, New York NY 2009
K.A. Olive and G. Steigman, “On the abundance of primordial helium”, Astrophys. J. Suppl. 97 (1995) 49
M.Livio: The Accelerating Universe: Infinite Expansion, the Cosmological Constant, and the Beauty of the Cosmos (Wiley, 2000)
G.J. Mathews, T. Kajino, and T. Shima, Big Bang Nucleosynthesis with a New Neutron Lifetime, Phys. Rev. D71 (2005) 021302
S.Boughn and R. Crittenden, A correlation between the cosmic microwave background and large-scale structure in the Universe, Nature 427 (2004)
Carl Sagan, “Cosmos” Random House (2002)