1
The Development of the Action Principle [E-Book] : A Didactic History from Euler-Lagrange to Schwinger /
2
Pioneers of Color Science [E-Book] /
Subject (ZB): ...Electrodynamics....

Full text 
3
QED and the men who made it : Dyson, Feynman, Schwinger, and Tomonaga /
Book
Subject (ZB): ...quantum electrodynamics...