@article{
    QNMF,
    author = "Yang, Zhirong and Oja, Erkki",
    responsibleauthor = "Yang, Zhirong",
    language = "eng",
    title = "Quadratic Nonnegative Matrix Factorization",
    journal = "Pattern Recognition",
    issn = "0031-3203",
    number = "4",
    volume = "45",
    unitcode = "T306-100",
    juforank = "3",
    il = "no",
    year = "2012",
    internalpdf = "QNMF.pdf",
    flags = "COIN,public",
    impactfactor = "A1",
    pages = "1500-1510"
}