@MISC\{IMM1993-02793,
    author       = "B. G. Thygesen and N. K. Poulsen",
    title        = "Generalized Predictive controller design using the delta operator",
    year         = "1993",
    publisher    = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2793-full.html"
}