@CONFERENCE\{IMM1999-02696,
    author       = "M. N{\o}rgaard and N. K. Poulsen and O. Ravn",
    title        = "Easy and Accurate State Estimation for Nonlinear Systems",
    year         = "1999",
    month        = "jul",
    pages        = "343-348",
    booktitle    = "14'th {IFAC} World Congress, Beijing, China",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2696-full.html"
}