@TECHREPORT\{IMM1999-02697,
    author       = "N. K. Poulsen and M. Rostgaard and A. Hansen and M. B. Lauritsen and M. Xin and U. H. Thygesen",
    title        = "Spektralfaktorisering",
    year         = "1999",
    pages        = "42",
    number       = "03",
    series       = "",
    institution  = "Department of Mathematical Modelling (IMM),  The Technical University of Denmark",
    address      = "",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2697-full.html"
}