TY  - BOOK
AU  - Kimball A. Milton
TI  - Schwinger's Quantum Action Principle
SN  - 9783319201283
PY  - 2015///
PB  - Springer International Publishing
KW  - Physics and Astronomy
UR  - https://doi.org/10.1007/978-3-319-20128-3
ER  -