@phdthesis{
    Sulkava2008,
    author = "Sulkava, Mika",
    publisher = "Helsinki University of Technology, Faculty of Information and Natural Sciences, Department of Information and Computer Science. Dissertations in Computer and Information Science. Report D24",
    title = "Learning from Environmental Data: Methods for Analysis of Forest Nutrition Time Series. Doctoral Dissertation",
    url = "http://lib.tkk.fi/Diss/2008/isbn9789512291540/",
    address = "Espoo",
    year = "2008",
    owner = "MM",
    impactfactor = "O1"
}