TY  - JOUR
AU  - A. I. Fet
TI  - Extremal problems for surfaces of bounded Gaussian curvature
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 292
EP  - 295
VL  - 153
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_153_2_a11/
LA  - ru
ID  - DAN_1963_153_2_a11
ER  -