*Einstein, Albert (September 27, 1905). [http://www.fourmilab.ch/etexts/einstein/E_mc2/e_mc2.pdf "Does the inertia of a body depend on its energy-content?"]. Translated in Perrett, Wilfrid and Jeffery, George B. (1923), ''The Principle of Relativity'' (London: Methuen), pp. 67-71. Retrieved from Fourmilab [Switzerland] website. | *Einstein, Albert (September 27, 1905). [http://www.fourmilab.ch/etexts/einstein/E_mc2/e_mc2.pdf "Does the inertia of a body depend on its energy-content?"]. Translated in Perrett, Wilfrid and Jeffery, George B. (1923), ''The Principle of Relativity'' (London: Methuen), pp. 67-71. Retrieved from Fourmilab [Switzerland] website. |