TY  - JOUR
AU  - A. V. Dmitruk
AU  - N. P. Osmolovskii
TI  - On the proof of Pontryagin's maximum principle by means of needle variations
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2014
SP  - 49
EP  - 73
VL  - 19
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_2014_19_5_a2/
LA  - ru
ID  - FPM_2014_19_5_a2
ER  -