@CONFERENCE\{IMM1993-01498,
    author       = "K. Madsen and K. Jonasson",
    title        = "A Projected Conjugate Gradient Method for Sparse Minimax Problems.",
    year         = "1993",
    keywords     = "minimax optimization, sparse problems",
    pages        = "304-311",
    booktitle    = "Proc. Symp. on Applied Mathematical Programming and Modelling. 
Budapest.",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1498-full.html"
}