%0 Journal Article
%A A. V. Levichev
%T The causal structure of a Lorentzian manifold determines its
%J Doklady Akademii Nauk
%D 1987
%P 1301-1305
%V 293
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1987_293_6_a3/
%G ru
%F DAN_1987_293_6_a3