[1] G. F. Lewis, et al. “Cosmological Radar Ranging in an Expanding Universe,” Monthly Notices of the Royal Astronomical Society, Vol. 388, No. 3, 2008, pp. 960-964. doi:10.1111/j.1365-2966.2008.13477.x
[2] T. Koupelis and K. F. Kuhn, “In Quest of the Universe,” 5th Edition, Jones & Bartlett Publishers, Sudbury, 2007, p. 557.
[3] O. D. Jefimenko, “Electromagnetic Retadration, and Theory and Relativity,” 2nd Edition, 2005.
[4] M. H. M. Hilo, et al. “Using of the Generalized Special Relativity in Estimating the Proton (Nucleon) Mass to Explain the Mass Defect,” Natural Science, Vol. 3, No. 2, pp. 141-144. doi:10.4236/ns.2011.32020
[5] F. L. Derek, “An Introduction to Tensor Calculus and Relativity,” 3rd Edition, John Wiley & Sons Ltd., New York, 1982, pp. 5-6.
[6] S. Weinberg, “Gravitation and Cosmology,” 3rd Edition, John Wiley & Sons Ltd., New York, 1972, p. 688.
[7] R. F. Evans and J. Dunning-Davies, “The Gravitational Red-Shift,” University of Hull, England, 2004, p. 3.
[8] R. C. Tolman, “Relativity, Thermodynamics and Cosmology,” 1st Edition, Oxford University Press, Oxford, 1934, p. 591.
[9] R. Adler, M. Bazin and M. Schiffer, “Introduction to General Relativity,” 2nd Edition, McGraw-Hill, New York, 1975.