A randomized Delaunay triangulation heuristic for the Euclidean Steiner tree problem in ℜd. - Jon W. Van Laarhoven; Jeffrey W. Ohlmann (J. Heuristics, 2011)

Geometric conditions for Euclidean Steiner trees in ℜd. - Jon W. Van Laarhoven; Kurt M. Anstreicher (Comput. Geom., 2013)