@incollection{
    Kohonen96icann,
    editor = {von der Malsburg, C. and von Seelen, W. and Vorbr{\"u}ggen, J. C. and Sendhoff, B.},
    author = "Kohonen, Teuvo and Kaski, Samuel and Lagus, Krista and Honkela, Timo",
    publisher = "Springer",
    title = "Very large two-level {SOM} for the browsing of newsgroups",
    series = "Lecture Notes in Computer Science, vol. 1112",
    booktitle = "Proceedings of ICANN96, International Conference on Artificial Neural Networks, Bochum, Germany, July 16-19, 1996",
    address = "Berlin",
    year = "1996",
    pages = "269-274"
}