1. Classical Electrodynamics;Jackson,1975
2. Foundations of Classical Electrodynamics: Charge, Flux, and Metric;Hehl,2003
3. Modified field theory with a finite radius of the electron;Born;Nature,1933
4. Foundations of the new field theory;Born;Proc. R. Soc. Lond. Ser. A Math. Phys. Eng. Sci.,1934
5. Eine lineare theorie des elektrons;Bopp;Ann. Phys., Lpz.,1940