TY  - JOUR
AU  - M. I. Sumin
TI  - The first variation and Pontryagin's maximum principle in optimal control for partial differential equations
JO  - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
PY  - 2009
SP  - 998
EP  - 1020
VL  - 49
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZVMMF_2009_49_6_a5/
LA  - ru
ID  - ZVMMF_2009_49_6_a5
ER  -