%0 Journal Article
%A S. E. Karapetyan
%T Topology of asymptotic lines on closed linear surfaces
%J Doklady Akademii Nauk
%D 1973
%P 283-286
%V 209
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_209_2_a5/
%G ru
%F DAN_1973_209_2_a5