%0 Journal Article
%A D. S. Gorshkov
%T Geometry of Lobachevskii in connection with certain questions of arithmetic
%J Zapiski Nauchnykh Seminarov POMI
%D 1977
%P 39-85
%V 67
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1977_67_a1/
%G ru
%F ZNSL_1977_67_a1