1. Kohonen, T.: Self-Organizing Maps. Springer, Heidelberg (2001).
https://doi.org/10.1007/978-3-642-56927-2
2. Kohonen, T.: Essentials of the self-organizing map. Neural Netw. 37, 52–65 (2013)
3. Kohonen, T.: MATLAB Implementations and Applications of the Self-Organizing Map, 201 p. Unigrafia Oy, Helsinki (2014)
4. Alhoniemi, E., Himberg, J., Parhankangas, J., Vesanto, J.: SOM Toolbox,
http://www.cis.hut.fi/projects/somtoolbox
. Accessed 15 Jan 2017
5. Zhongwen, L., Zhengping, Y., Xincai, W.: Self-organizing maps computing on graphic process unit. In: ESANN’ 2005 - European Symposium on Artifitial Neural Networks, Bruges, Belgium, pp. 27–29 (2005)