TY  - JOUR
AU  - V. F. Dem'yanov
TI  - On a necessary condition for an extremum in control problems with an aftereffect
JO  - Doklady Akademii Nauk
PY  - 1966
SP  - 275
EP  - 277
VL  - 166
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1966_166_2_a3/
LA  - ru
ID  - DAN_1966_166_2_a3
ER  -