Reference:

Samuel Kaski, Krista Lagus, Timo Honkela, and Teuvo Kohonen. Statistical aspects of the WEBSOM system in organizing document collections. Computing Science and Statistics, 29:281–290, 1998. (Scott, D. W., ed.), Interface Foundation of North America, Inc.: Fairfax Station, VA.

Suggested BibTeX entry:

@article{Kaski98stat,
    author = {Samuel Kaski and Krista Lagus and Timo Honkela and Teuvo Kohonen},
    journal = {Computing Science and Statistics},
    note = {(Scott, D. W., ed.), Interface Foundation of North America, Inc.: Fairfax Station, VA},
    pages = {281-290},
    title = {Statistical Aspects of the {WEBSOM} System in Organizing Document Collections},
    volume = {29},
    year = {1998},
}