@TECHREPORT\{IMM1995-0342,
    author       = "J. Brimberg and H. Juel",
    title        = "A minisum model with forbidden regions for locating a semi-desirable facility in the plane",
    year         = "1995",
    number       = "",
    series       = "IMM-REP-1995-10",
    institution  = "Institute of Mathematical Modelling, Technical University of Denmark",
    address      = "",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/342-full.html"
}