TY  - JOUR
AU  - F. I. Fedorov
TI  - A first-order equation for the gravitational field
JO  - Doklady Akademii Nauk
PY  - 1968
SP  - 802
EP  - 805
VL  - 179
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1968_179_4_a12/
LA  - ru
ID  - DAN_1968_179_4_a12
ER  -