TY  - BOOK
AU  - Chernobrovov, N. 
AU  - Sverdlov, V. 
AU  - Markov, G. 
TI  - Protective relaying
U1  - 621.317 CHE 23
PY  - 1974///
CY  - Moscow : 
PB  - Mir publishers
KW  - Protective relays
N1  - Includes index
ER  -