%0 Journal Article
%A A. M. Vershik
%A V. Ya. Gershkovich
%T Geodesic flow on $SL_2\mathbb R$ with non-holonomic constraints
%J Zapiski Nauchnykh Seminarov POMI
%D 1986
%P 7-17
%V 155
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1986_155_a1/
%G ru
%F ZNSL_1986_155_a1