@article{NN2004,
author = {Jorma Laaksonen and Markus Koskela and Erkki Oja},
journal = {Neural Networks},
month = {October-November},
number = {8-9},
pages = {1121-1133},
title = {Class Distributions on {SOM} Surfaces for Feature Extraction and Object Retrieval},
volume = {17},
year = {2004},
}