%0 Journal Article
%A P. P. Bondarenko
%T On the upper bound for the number of additional edges in minimal vertex extensions of colored circles
%J Prikladnaya Diskretnaya Matematika. Supplement
%D 2013
%P 73-75
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PDMA_2013_6_a33/
%G ru
%F PDMA_2013_6_a33