1. Wilson DR, Martinez TR (2001) The need for small learning rates on large problems. In: Proc int joint conf on neural networks, vol 1, 2001, pp 115–119
2. Berglund E, Sitte J (2006) The parameter-less self-organizing map algorithm. IEEE Trans Neural Netw 17(2):305–316
3. Kohonen T (1984) Self-organization and associative memory, vol 8. Springer, Berlin
4. Oja M, Kaski S, Kangas J, Kohonen T (2007) Bibliography of SOM papers. http://www.cis.hut.fi/research/som-bibl/ . 2007
5. Göppert J, Rosenstiel W (1996) Varying cooperation in SOM for improved function approximation. In: IEEE int conf on neural networks, vol 1, 1996, pp 1–6