The principle of relativity : a collection of original memoirs on the special and general theory of relativity - Lorentz, H. A. 1853-1928.; Einstein, Albert, 1879-1955.; Minkowski, H. 1864-1909.; Weyl, Hermann, 1885-1955.; Sommerfeld, Arnold, 1868-1951.; Perrett, W.; Jeffery, G. B. 1891- (Dover Publications, 1952)