@TECHREPORT\{IMM2002-01727,
    author       = "T. S. Nielsen and H. Madsen and J. Holst and H. T. S{\o}gaard",
    title        = "Predictive control of supply temperature in district  heating systems",
    year         = "2002",
    pages        = "42",
    number       = "",
    series       = "IMM-TR-2002-23",
    institution  = "Informatics and Mathematical Modelling",
    address      = "Technical University of Denmark, Lyngby, Denmark",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1727-full.html"
}