%0 Journal Article
%A M. A. Akivis
%T Closed $G$-structures on a~differentiable manifold
%J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara
%D 1975
%P 69-79
%V 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTG_1975_7_a5/
%G ru
%F INTG_1975_7_a5