TY  - BOOK
AU  - Friedrichs,K.O.
TI  - Mathematical aspects of the Quantum theory of fields / 
U1  - 530.143 FRI 
PY  - 1953///
CY  - New York : 
PB  - Interscience  Publishers, Inc., 
KW  - Mathematical physics
KW  - Quantum theory of Fields
ER  -