%0 Journal Article
%A Plesník, Ján
%T On the interchange heuristic for locating centers and medians in a graph
%J Mathematica slovaca
%D 1987
%P 209-216
%V 37
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MASLO_1987__37_2_a9/
%G en
%F MASLO_1987__37_2_a9