%0 Journal Article
%A V. T. Fomenko
%T Some properties of two-dimensional surfaces with zero normal torsion in $E^4$
%J Sbornik. Mathematics
%D 1979
%P 251-265
%V 35
%N 2
%U http://geodesic.mathdoc.fr/item/SM_1979_35_2_a6/
%G en
%F SM_1979_35_2_a6