%0 Journal Article
%A R. A. Sarkisyan
%A I. G. Shandra
%T Regularity and Tresse's theorem for geometric structures
%J Izvestiya. Mathematics 
%D 2008
%P 345-382
%V 72
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_2008_72_2_a6/
%G en
%F IM2_2008_72_2_a6