%0 Journal Article
%A D. A. Eibozhenko
%T Approximation algorithm $S^*$ for Steiner problem in Euclidean directed graphs
%J Vestnik Sankt-Peterburgskogo universiteta. Prikladnaâ matematika, informatika, processy upravleniâ
%D 2012
%P 23-32
%N 3
%U http://geodesic.mathdoc.fr/item/VSPUI_2012_3_a2/
%G ru
%F VSPUI_2012_3_a2