@TECHREPORT\{IMM1990-02747,
    author       = "J. Holst and N. K. Poulsen",
    title        = "A Robust Self-Tuning Controller for Time Varying Systems",
    year         = "1990",
    number       = "LUTFD2",
    series       = "",
    institution  = "Department of Mathematical Statistics, Lund Institute of Technology, Lund, Sweden",
    address      = "",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2747-full.html"
}