%0 Journal Article
%A V. Z. Polyakov
%T On extension of Cartesian products
%J Sbornik. Mathematics
%D 1968
%P 559-569
%V 5
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1968_5_4_a5/
%G en
%F SM_1968_5_4_a5