%0 Journal Article
%A S. A. Grigoryan
%A R. N. Gumerov
%T On a~covering group theorem and its applications
%J Lobachevskii journal of mathematics
%D 2002
%P 9-16
%V 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/LJM_2002_10_a1/
%G en
%F LJM_2002_10_a1