@MISC\{IMM1974-03776,
    author       = "V. V. Vidal",
    title        = "Nonlinear Programming",
    year         = "1974",
    pages        = "15",
    publisher    = "{IMSOR,} {DTH}",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3776-full.html"
}