TY  - JOUR
AU  - A. V. Sarychev
TI  - The index of the second variation of a~control system
JO  - Sbornik. Mathematics
PY  - 1982
SP  - 383
EP  - 401
VL  - 41
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1982_41_3_a3/
LA  - en
ID  - SM_1982_41_3_a3
ER  -