Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
An extension of Dr. Schwinger’s two previous classic works, this volume contains four sections in addition to the previous sections of Electrodynamics II, which were concerned with the two-particle problem, and applications to hydrogenic atoms, positronium, and muonium.