@article{3028501,
    title = "ACM TKDD Special Issue: ACM SIGKDD 2007 and ACM SIGKDD 2008",
    author = "Mannila, H. and Gunopulos, D.",
    journal = "ACM Transactions on Knowledge Discovery from Data (TKDD)",
    year = "2009",
    volume = "3",
    number = "4",
    issn = "1556-4681",
    doi = "10.1145/1631162.1631163"
}