%0 Journal Article
%A Michael Heller
%A Wiesław Sasin
%T The closed Friedman world model with the initial and final singularities as a non-commutative space
%J Banach Center Publications
%D 1997
%P 153-161
%V 41
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/-41-1-153-161/
%R 10.4064/-41-1-153-161
%G en
%F 10_4064__41_1_153_161