%0 Journal Article
%A A. P. Norden
%A A. P. Shirokov
%T The heritage of N.\,I.~Lobachevskii and the activity of Kazan geometers
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1993
%P 47-74
%V 48
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1993_48_2_a2/
%G en
%F RM_1993_48_2_a2