%0 Journal Article
%A V. Yu. Rovenskiǐ
%T Decomposition of ruled and parabolic surfaces
%J Doklady Akademii Nauk
%D 1989
%P 1049-1051
%V 305
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1989_305_5_a5/
%G ru
%F DAN_1989_305_5_a5