@CONFERENCE\{IMM1999-01505,
    author       = "K. K. Andersen and H. Poulsen",
    title        = "Building integrated heating systems",
    year         = "1999",
    keywords     = "modelling heating systems",
    booktitle    = "Building Simulation, Kyotot",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1505-full.html"
}