@ARTICLE\{IMM2006-04966,
    author       = "R. K. Olsson and L. K. Hansen",
    title        = "Linear State-space Models for Blind Source",
    year         = "2006",
    pages        = "2585-2602",
    journal      = "Journal of Machine Learning Research",
    volume       = "7",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://jmlr.csail.mit.edu/papers/volume7/olsson06a/olsson06a.pdf"
}