TY  - JOUR
AU  - M. I. Zelikin
TI  - An analogue of Pontryagin's maximum principle in problems of minimization of multiple integrals
JO  - Izvestiya. Mathematics 
PY  - 2017
SP  - 973
EP  - 984
VL  - 81
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_2017_81_5_a2/
LA  - en
ID  - IM2_2017_81_5_a2
ER  -