TY  - JOUR
AU  - V. F. Borisov
TI  - Kelley Condition and Structure of Lagrange Manifold in a~Neighborhood of a~First-Order Singular Extremal
JO  - Contemporary Mathematics. Fundamental Directions
PY  - 2006
SP  - 5
EP  - 44
VL  - 19
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMFD_2006_19_a0/
LA  - ru
ID  - CMFD_2006_19_a0
ER  -