%0 Journal Article
%A I. G. Tsar'kov
%T The Geometry of a Singular Set of Hypersurfaces and the Eikonal Equation
%J Matematičeskie zametki
%D 2020
%P 441-451
%V 108
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2020_108_3_a8/
%G ru
%F MZM_2020_108_3_a8