TY  - JOUR
AU  - Yu. I. Ermakov
TI  - On the invariant framing of some surfaces of a special kind in projective space
JO  - Doklady Akademii Nauk
PY  - 1965
SP  - 1234
EP  - 1237
VL  - 162
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1965_162_6_a5/
LA  - ru
ID  - DAN_1965_162_6_a5
ER  -