TY  - JOUR
AU  - B. T. Polyak
TI  - Existence theorems and convergence of minimizing sequences for extremal problems with constraints
JO  - Doklady Akademii Nauk
PY  - 1966
SP  - 287
EP  - 290
VL  - 166
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1966_166_2_a7/
LA  - ru
ID  - DAN_1966_166_2_a7
ER  -