%0 Journal Article
%A A. Yu. Levin
%T Algorithm for the shortest connection of a group of graph vertices
%J Doklady Akademii Nauk
%D 1971
%P 773-776
%V 200
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_200_4_a5/
%G ru
%F DAN_1971_200_4_a5