Knop, R.A., Aldering, G., Amanullah, R., et al. (2003) New Constraints on ΩM, , and from an Independent set of eleven high-redshift supernovae observed with HST1. The Astrophysical Journal, 598, 102.
 Permutter, S., et al. (1999) Measurements of omega and lambda from 42 high redshift supernovae. Astrophysical Journal, 57, 565-586.
 Riess, A.G., et al. (1998) Observational evidence from supernovae for an accelerating universe and cosmological constant. Astronomical Journal, 116, 1009-1038.
 Maartens, R. and Majerotto, E. (2006) Observational constraints on self-accelerating cosmology. Journal of Astrophysics, 74, 2-6.
 Perlmutter, S. Turner, M.S. and White, M. (1999) Constraining dark energy with sne ia and large-scale structure. Journal of Astrophysics, 83, 1-5.
 Freedman, W.L., et al., (2000) Final results from the hubble space telescope key project to measure the hubble constant. Journal of Astrophysics, 553, 57-72.
 Tonry, J.L. et al. (2003) Cosmological results from High-z supernovae. Journal of Astrophysics, 594, 1-24.
 Spergel, D.N., et al. (2006) Willkinson Microwave Anisotropy Probe (WMAP) three years results: Implications for cosmology. NASA Publications, New York.
 Carroll, S.M. (2003) Why is the universe accelerating? Journal of Astrophysics, 743, 16-32.
 Carroll, S.M. (2006) The cosmological constant. Living Reviews in Relativity.
 Shibli, M. (2007) The foundation of the fourth law of thermodynamics: Dark energy and its nature: Can dark energy be generated? International Conference on Renewable Energies and Power Quality (ICREPQ’07), European Association for the Development of Renewable Energies, Environment and Power Quality, Sevilha, 26-28 March 2007. www.icrepq.com,
 Turner, M.S. (1999) Dark matter and dark energy in the universe. The 3rd Stromlo Symposium: The Galactic Halo ASP Conference Series, 666.
 Huterer, D. and Turner, M.S. (1999) Prospects for probing the dark energy via supernova distance measurements. Physical Review D, 60, 081301.
 Carroll, S.M., Hoffman, M. and Trodden, M., (2003) Can the dark energy equation-of-state parameter w be less than ?1? Physical Review D, 68, 9-20.
 Huterer, D. and Turner, M.S. (2001) Probing dark energy: Methods and strategies. Physical Review D, 64, 123527.
 Peebles, P.J.E. and Ratra, B. (2003) The cosmological constant and dark energy. Reviews of Modern Physics, 75, 559-606. doi:10.1103/RevModPhys.75.559
 Copeland, E.J., Sami, M. and Tsujikawa, S. (2006) Dynamics of dark energy. International Journal of Modern Physics, 15, 1753-1935.
 Volovik, G.E. (2006) Vcauum energy: Myths and reality. International Journal of Modern Physics A, 15, 1987- 2010.
 Carroll, S.M., Sawicki, I., Silvestri, A. and Trodden, M. (2006) Modified-source gravity and cosmological structure formation. Journal of Astrophysics, 8, 323.
 Dvali, G. and Turner, M. (2003) Dark energy as a modifications of the friedmann equation. Journal of Astrophysics, 2, 11.
 Spergel, D.N., et al. (2006) Wilkinson Microwave Anisotropy Probe (WMAP) three year results: Implications for cosmology. WMAP Collaboration.
 Shibli, M. (2008) The equation of state of dark energy and dark matter: Boltzmann constant and the unified entity: Utilization of space energy. International Conference on Renewable Energies and Power Quality (ICREPQ’08), European Association for the Development of Renewable Energies, Environment and Power Quality, Santander, 12-14 March 2008.
 Shibli, M. (2009) The fundamental particle and energy quanta of dark matter and dark energy: Boltzmann particles and utilization its energy. International Conference on Renewable Energies and Power Quality (ICREPQ’09), Valencia, 15-17 April 2009.
 Shibli, M. (2006) Canonical Modeling Approach of a micro/nano free-flying space robot: A proposal towards detecting the nature of space-time. 1st IEEE International Symposium on Systems and Control in Aerospace and Astronautics (ISSCAA 2006), Co-Sponsored by AIAA, Harbin, 19-21 January 2006.
 Shibli, M. (2011) the foundation of the theory of the universe dark energy and its nature. Journal of Natural Science, 3, 165-185. doi:10.4236/ns.2011.33023
 Cengel, Y.A. and Boles, M.A. (2006) Thermodynamics: An engineering approach. 5th Edition, McGraw Hill, Boston.
 Jarosik, N., et al. (2007) Three-year Wilkinson Microwave Anisotropy Probe (WMAP) observations. Astrophysics Journal, 170, 377-408.
 Spergel, D.N., et al. (2003) First year Wilkinson Microwave Anisotropy Probe (WMAP) observations: Determination of cosmological parameters. Journal of Astrophysics, 148, 175-194. doi:10.1086/377226
 U.S. Department of Energy’s (DOE) (2010) Brookhaven National Laboratory new findings on Hot Quark Soup produced at RHIC. 16 February 2010.
 Kuster, M., Raffelt, G. and Beltrán, B. (2008) Recent results from the PVLAS experiment on the magnetized vacuum. Axions: Theory, Cosmology, and Experimental Searches (Lecture Notes in Physics), 741, 157.
 Peccei, R.D. and Quinn, H.R. (1977) An important paper for understanding the role of the axion in CP conservation. Physical Review D, 16.
 Mohr, P.J. Taylor, B.N. and Newell, D.B. (2007) CODATA recommended values of the fundamental physical constants. National Institute of Standards and Technology, Gaithersburg, Maryland, 28 December 2007.
 Coughlan, G.D., Dodd, J.E. and Gripaios, B.M. (2006). The Ideas of Particle Physics: An Introduction for Scientists. Cambridge University Press, Cambridge
 Hawking, S.W. (1998) A Brief History of Time: From the Big Bang to Black Holes. Bantam Books, Inc, New York.