TY  - BOOK
AU  - Helszajn, J
AU  - 
TI  - Nonreciprocal microwave juctions and circulators
U1  - 621.372.832 
PY  - 1975///
CY  - New York
PB  - Wiley Eastern
KW  - microwave circulators
KW  - microwave junctions
ER  -