TY  - JOUR
AU  - E. S. Levitin
TI  - On conditions for a local minimum in extremal problems with constraints
JO  - Doklady Akademii Nauk
PY  - 1975
SP  - 1031
EP  - 1034
VL  - 221
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1975_221_5_a6/
LA  - ru
ID  - DAN_1975_221_5_a6
ER  -