FAIGL, J. On the Performance of Self-organizing Maps for the Non-Euclidean Traveling Salesman Problem in the Polygonal Domain. Information Sciences. 2011, 181(19), 4214-4229. ISSN 0020-0255. DOI 10.1016/j.ins.2011.05.019.
URL: http://www.sciencedirect.com/science/article/pii/S0020025511002684