@CONFERENCE\{IMM2000-03846,
    author       = "V. V. Vidal",
    title        = "Optimal maximum principles",
    year         = "2000",
    pages        = "15",
    booktitle    = "International {OR} conference in Habana, Cuba",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3846-full.html"
}