1. M. Benkert, T. Shirabe, A. Wolff, The minimum Manhattan network problem: Approximations and exact solutions. in: Proc. 20th European Workshop on Computational Geometry, EWCG’04, 24–26 March 2004, Sevilla, 2004, pp. 209–212
2. M. Benkert, A. Wolff, F. Widmann, The minimum Manhattan network problem: A fast factor-3 approximation. in: Proc. 8th Japanese Conf. on Discrete and Computational Geometry, JCDCG’04, 8–11 October 2004, Tokyo, 2004, pp. 85–86
3. The minimum Manhattan network problem: Approximations and exact solutions;Benkert;Computational Geometry,2006
4. Finding efficient solutions for rectilinear distance location problems efficiently;Chalmet;European Journal of Operations Research,1981
5. Approximating a minimum Manhattan network;Gudmundsson;Nordic Journal of Computing,2001