@ARTICLE\{IMM2002-0284,
    author       = "J. Brimberg and H. Juel and A. Sch{\"{o}}bel",
    title        = "Linear facility location in three dimensions - Models and solution methods",
    year         = "2002",
    month        = "dec",
    pages        = "1050-1057",
    journal      = "Operations Research",
    volume       = "50",
    editor       = "",
    number       = "6",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/284-full.html"
}