%0 Journal Article
%A È. G. Neifel'd
%T Intrinsic geometries of a normalized Penrosian
%J Trudy Geometricheskogo Seminara
%D 1990
%P 70-73
%V 20
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KUTGS_1990_20_a7/
%G ru
%F KUTGS_1990_20_a7