%0 Journal Article
%A L. N. Romakina
%T Analogs of a formula of Lobachevsky for angle of parallelism on the hyperbolic plane of positive curvature
%J Sibirskie èlektronnye matematičeskie izvestiâ
%D 2013
%P 393-407
%V 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SEMR_2013_10_a28/
%G ru
%F SEMR_2013_10_a28