@incollection{
    Kohonen97icnn,
    author = "Kohonen, Teuvo",
    publisher = "IEEE Service Center",
    title = "Exploration of Very Large Databases by Self-Organizing Maps",
    booktitle = "Proceedings of ICNN'97, International Conference on Neural Networks",
    address = "Piscataway, NJ",
    year = "1997",
    pages = "PL1-PL6"
}