TY  - JOUR
AU  - Yu. P. Krivenkov
TI  - Optimality conditions for a quasilinear problem with partial differential equations in the presence of phase constraints
JO  - Doklady Akademii Nauk
PY  - 1979
SP  - 37
EP  - 41
VL  - 249
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1979_249_1_a7/
LA  - ru
ID  - DAN_1979_249_1_a7
ER  -