TY - BOOK AU - Schwinger, Julian TI - Particles, sources, and fields: volume I SN - 0738200530 v1 CY - Reading, Mass. KW - Particles (Nuclear physics) KW - Field theory (Physics) KW - Electrodynamics N1 - (3 volumes: 0738200549 (v. 2): 0738200557 (v. 3)) ER -