@CONFERENCE\{IMM1983-0355,
    author       = "H. Juel",
    title        = "Optimalitetsbetingelser for Weber-problemer",
    year         = "1983",
    booktitle    = "Dansk Selskab for Operationsanalyse",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/355-full.html"
}