@phdthesis{
    ZhangThesis14,
    author = "Zhang, He",
    juforank = "NA",
    school = "Aalto University School of Science",
    isbn = "978-952-60-5828-3",
    language = "eng",
    title = "Advances in Nonnegative Matrix Decomposition with Application to Cluster Analysis",
    url = "http://urn.fi/URN:ISBN:978-952-60-5829-0",
    timestamp = "2014.09.19",
    issn = "1799-4934",
    responsibleauthor = "Zhang, He",
    flags = "public",
    il = "no",
    year = "2014",
    owner = "MN",
    unitcode = "T306-100",
    kay = "NA",
    impactfactor = "G5",
    type = "Doctoral dissertation",
    pages = "94 p. + app. 94 p."
}