@MISC\{IMM2004-03557,
    author       = "H. Nielsen and H. Madsen and T. Nielsen and J. Badger and G. Giebel and L. Landberg and K. Sattler and H. Feddersen",
    title        = "Wind Power Ensemble Forecasting",
    year         = "2004",
    publisher    = "",
    address      = "Chicago",
    url          = "http://www.awea.org"
}