%0 Journal Article
%A A. N. Zubkov
%A V. T. Fomenko
%T Transformations of $R$-surfaces of Euclidean space preserving their Grassman image
%J Matematičeskie zametki
%D 1989
%P 20-27
%V 45
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1989_45_1_a3/
%G ru
%F MZM_1989_45_1_a3