TY  - JOUR
AU  - S. Ya. Havinson
TI  - Extremum problems for functions satisfying some supplementary restrictions inside the region and the application 

JO  - Doklady Akademii Nauk
PY  - 1960
SP  - 270
EP  - 273
VL  - 135
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1960_135_2_a7/
LA  - ru
ID  - DAN_1960_135_2_a7
ER  -