1. Anderson, J.L.: Principles of Relativity Physics. Academic Press, New York (1967)
2. Bacry, H., Lévy-Leblond, J.-M.: Possible kinematics. J. Math. Phys. 9, 1605 (1968)
3. Bridgman, P.W.: The Logic of Modern Physics. MacMillan, New York (1927)
4. Bridgman, P.W.: A Sophisticate’s Primer of Relativity. Routledge, London (1963)
5. Broad, C.D.: Scientific Thought. Routledge, London (1923)