TY  - JOUR
AU  - E. G. Gol'shtein
TI  - A certain class of non-linear extremum problems
JO  - Doklady Akademii Nauk
PY  - 1960
SP  - 507
EP  - 510
VL  - 133
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1960_133_3_a1/
LA  - ru
ID  - DAN_1960_133_3_a1
ER  -