@phdthesis{
    Heikinheimo2010,
    author = "Heikinheimo, Hannes",
    title = "Extending Data Mining Techniques for Frequent Pattern Discovery: Trees, Low-Entroby Sets, and Crossmining",
    url = "http://lib.tkk.fi/Diss/2010/isbn9789526030043/",
    address = "Espoo",
    year = "2010",
    owner = "MM",
    impactfactor = "G4",
    pages = "113"
}