TY  - JOUR
AU  - A. I. Fet
TI  - Absolute minimum in a two-dimensional parametric problem on a manifold
JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 1224
EP  - 1226
VL  - 113
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_113_6_a9/
LA  - ru
ID  - DAN_1957_113_6_a9
ER  -