@inproceedings{
    Cybernetics98,
    editor = "Trappl, R.",
    author = {J{\"a}ppinen, Harri and Honkela, Timo and Lehtola, Aarno and Valkonen, Kari},
    publisher = "Kluwer Academic Publishers",
    eventtime = "April 5-8",
    title = "Hierarchical Natural Language Database Interface System",
    eventlocation = "Wien, Austria",
    booktitle = "Proceedings of the 9th European Meeting on Cybernetics and Systems Research",
    year = "1998",
    pages = "893-900"
}