%0 Journal Article
%A N. Kh. Rozov
%T The local section method for systems with refraction of trajectories
%J Doklady Akademii Nauk
%D 1972
%P 535-538
%V 202
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1972_202_3_a9/
%G ru
%F DAN_1972_202_3_a9