M. Kylvaja, K. Hatonen, P. Kumpulainen, J. Laiho, P. Lehtimaki, K. Raivio, P. Vehvilainen,
Trial report on self-organizing map based analysis tool for radio networks [GSM applications] vehicular technology conference. ,vol. 4, pp. 2365- 2369 ,(2004) ,
10.1109/VETECS.2004.1390698