%0 Journal Article
%A N. N. Nefedov
%T Two-dimensional contrast structures of step type: asymptotics,
%J Doklady Akademii Nauk
%D 1996
%P 603-605
%V 349
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1996_349_5_a6/
%G ru
%F DAN_1996_349_5_a6