%0 Journal Article
%A O. V. Borodin
%T Joint generalization of the theorems of Lebesgue and Kotzig on the combinatorics of planar maps
%J Diskretnaya Matematika
%D 1991
%P 24-27
%V 3
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DM_1991_3_4_a3/
%G ru
%F DM_1991_3_4_a3