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Lorentz, H. A. 1853-1928., Albert Einstein, H. 1864-1909 Minkowski, Hermann Weyl, Arnold Sommerfeld, W. Perrett, and G. B. 1891- Jeffery. The Principle of Relativity: A Collection of Original Memoirs On the Special and General Theory of Relativity. New York: Dover Publications, 1952.

Lorentz, H. A. 1853-1928., et al. The Principle of Relativity: A Collection of Original Memoirs On the Special and General Theory of Relativity. New York: Dover Publications, 1952.