@ARTICLE\{IMM1997-0688,
    author       = "O. Edlund and H. Ekblom and K. Madsen",
    title        = "Algorithms for Non-linear {M-}Estimation",
    year         = "1997",
    pages        = "373-383",
    journal      = "Computational Statistics",
    volume       = "12",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/688-full.html"
}