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