Fernández-Rañada, Antonio2023-06-212023-06-211980-11-150556-282110.1103/PhysRevD.22.2422https://hdl.handle.net/20.500.14352/64906© 1980 The American Physical Society. We are very indebted to Dr. L. García for many discussions and help in the numerical calculations. This work is part of a program partially supported by Instituto de Estudios Nucleares, Madrid, Spain.The electromagnetic mass of an extended particle with spin is studied in Born-Infeld theory.engjournal articlehttp://dx.doi.org/10.1103/PhysRevD.22.2422http://journals.aps.orgopen access537ElectricidadElectrónica (Física)2202.03 Electricidad