@inproceedings{
    mannilasalmenkivikdd,
    author = "Mannila, Heikki and Salmenkivi, M.",
    pages = "341-346",
    booktitle = "Proceedings of the Seventh ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD 2001)",
    year = "2001",
    editors = "F. Provost and R. Srikant",
    title = "Finding simple intensity descriptions from event sequence data"
}