1. A. EINSTEIN: ref. [1] of § [20](b).
2. M. VON LAUE: ref. [2] of Appendix I.
3. Resultant momentum and kinetic energy in relativistic mechanics;PATHRIA;Amer. J. Phys.,1956
4. On transformations in relativistic mechanics;PATHRIA;Amer. J. Phys.,1956
5. La variance relativiste du moment cinétique d'un corps en rotation;DE BROGLIE;J. Math. pures et appl.,1936