%0 Journal Article
%A V. F. Borisov
%T Kelley Condition and Structure of Lagrange Manifold in a~Neighborhood of a~First-Order Singular Extremal
%J Contemporary Mathematics. Fundamental Directions
%D 2006
%P 5-44
%V 19
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMFD_2006_19_a0/
%G ru
%F CMFD_2006_19_a0