%0 Journal Article
%A D.Z. Du
%A F.K. Hwang
%A G.D. Song
%A G.Y Ting
%T Steiner Minimal Trees on Sets of Four Points.
%J Discrete & computational geometry
%D 1987
%P 401-414
%V 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DCG_1987__2_131031/
%F DCG_1987__2_131031