Reference:

Teuvo Kohonen, Samuel Kaski, Krista Lagus, and Timo Honkela. Very large two-level SOM for the browsing of newsgroups. In C. von der Malsburg, W. von Seelen, J. C. Vorbrüggen, and B. Sendhoff, editors, Proceedings of ICANN96, International Conference on Artificial Neural Networks, Bochum, Germany, July 16-19, 1996, Lecture Notes in Computer Science, vol. 1112, pages 269–274. Springer, Berlin, 1996.

Suggested BibTeX entry:

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