1. M. Abellanas, F. Hurtado, C. Icking, R. Klein, E. Langetepe, L. Ma, B. Palop, V. Sacristan, The farthest color Vornonoi diagram and related problems, Technical Report 002, Institut fur Informatik I, Rheinische Friedrich–Wilhelms-Universitat, Bonn, 2006.
2. Exact algorithms for the bottleneck Steiner tree problem extended abstract;Bae,2009
3. On exact solutions to the Euclidean bottleneck Steiner tree problem;Bae;Information Processing Letters,2010
4. On approximation of the power-p and bottleneck Steiner trees;Berman,2000
5. M. Brazil, C.J. Ras, K. Swanepoel, D.A. Thomas, Generalised k-Steiner tree problems in normed planes (submitted for publication), arXiv:1111.1464v1.