@ARTICLE\{IMM2000-01941,
    author       = "M. N{\o}rgaard and N. K. Poulsen and O. Ravn",
    title        = "New developments in state estimation for Nonlinear Systems",
    year         = "2000",
    pages        = "1627-1638",
    journal      = "Automatica",
    volume       = "36",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1941-full.html"
}