@incollection{
    Honkela2000hybrid,
    author = "Honkela, Timo",
    chapter = "Self-Organizing Maps in Symbol Processing",
    publisher = "Springer",
    title = "Hybrid Neural Systems",
    url = "http://www.cis.hut.fi/tho/publications/honkela_hybrid.pdf",
    year = "2000",
    pages = "348-362"
}