@TECHREPORT\{IMM2004-04000,
    author       = "R. E. Madsen and L. K. Hansen and O. Winther",
    title        = "Singular Value Decomposition and Principal Component Analysis",
    year         = "2004",
    number       = "",
    series       = "",
    institution  = "",
    address      = "",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/4000-full.html",
    abstract     = "This note is intended as a brief introduction to singular value decomposition (SVD) and
principal component analysis (PCA). These are very useful techniques in data analysis and
visualization."
}