%0 Journal Article
%A V. I. Berdyshev
%T Two methods of characterizing the visibility of a moving point
%J Trudy Instituta matematiki i mehaniki
%D 2008
%P 69-81
%V 14
%N 3
%U http://geodesic.mathdoc.fr/item/TIMM_2008_14_3_a5/
%G ru
%F TIMM_2008_14_3_a5