@article{
    Honkela96alma,
    author = "Honkela, Timo and Kaski, Samuel and Lagus, Krista and Kohonen, Teuvo",
    note = "Electronic Journal, address http://www.diemme.it/~luigi/alma.html",
    title = "Self-organizing maps of document collections",
    journal = "ALMA",
    number = "2",
    volume = "1",
    year = "1996"
}