TY  - JOUR
AU  - M. Sh. Yakupov
TI  - Einstein's spaces of the second order of immersion
JO  - Doklady Akademii Nauk
PY  - 1968
SP  - 1096
EP  - 1098
VL  - 180
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1968_180_5_a23/
LA  - ru
ID  - DAN_1968_180_5_a23
ER  -