%0 Journal Article
%A A. Yu. Ol'shanskii
%T On the problem of the existence of an invariant mean on a~group
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1980
%P 180-181
%V 35
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1980_35_4_a12/
%G en
%F RM_1980_35_4_a12