%0 Journal Article
%A Svetlana Katok
%T Closed geodesics, periods and arithmetic of modular forms.
%J Inventiones mathematicae
%D 1985
%P 469-480
%V 80
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1985__80_143240/
%F IM_1985__80_143240