D. V.  Raje, Purohit, H. J., Badhe, Y. P., Tambe, S. S., and Kulkarni, B. D., ?Self-organizing maps: a tool to ascertain taxonomic relatedness based on features derived from 16S rDNA sequence?, Journal of Biosciences, vol. 35, no. 4, pp. 617-627, 2010.