1. The Principle of Relativity;Cunningham,1914
2. Die grundlage der allgemeinen relativitätstheorie;Einstein;Annalen der Physics,1916
3. Classical Electrodynamics;Jackson,1999
4. The Classical Theory of Fields;Landau,1975
5. Lorenz, Lorentz, and the gauge;Nevels;IEEE Antennas and Propagation Magazine,2001