TY  - JOUR
AU  - Z. A. Steingrad
TI  - Einstein--Maxwell equation system and the calibration of four vector of the electromagnetic field
JO  - Doklady Akademii Nauk
PY  - 1978
SP  - 85
EP  - 88
VL  - 243
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1978_243_1_a20/
LA  - ru
ID  - DAN_1978_243_1_a20
ER  -