%0 Journal Article
%A A. V. Aminova
%A N. A.-M. Aminov
%T The projective geometric theory of systems of second-order differential equations: straightening and symmetry theorems
%J Sbornik. Mathematics
%D 2010
%P 631-643
%V 201
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_2010_201_5_a0/
%G en
%F SM_2010_201_5_a0