@TECHREPORT\{IMM2005-03914,
    author       = "A. Dohn and S. G. Christensen and D. M. Rous{\o}e",
    title        = "The p/q{-ACTIVE} facility location problem: Investigation of the solution space and an {LP-}fitting heuristic",
    year         = "2005",
    keywords     = "p/q{-ACTIVE,} uncapacitated facility location, heuristic solution methods, {LP-}relaxation, {LP-}fit, {MIP-}heuristics",
    number       = "",
    series       = "IMM-Technical report-2005-08",
    institution  = "Informatics and Mathematical Modelling, Technical University of Denmark, {DTU}",
    address      = "Richard Petersens Plads, Building 321, {DK-}2800 Kgs. Lyngby",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3914-full.html"
}