@TECHREPORT\{IMM2002-0346,
    author       = "J. Brimberg and H. Juel and A. Sch{\"{o}}bel",
    title        = "Properties of  {3-}dimensional line location models",
    year         = "2002",
    number       = "",
    series       = "IMM-TR-2002-5",
    institution  = "Informatics and Mathematical Modelling, Technical University of Denmark",
    address      = "",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/346-full.html",
    abstract     = "We consider the problem of locating a line with respect to some existing facilities in {3-}dimensional space, such that the sum of weighted distances between the line and the facilities is minimized. Measuring distance using the l\_p norm is discussed, along with the special cases of Euclidean and rectangular norms. Heuristic solution procedures for finding a local minimum are outlined."
}