@MISC\{IMM2001-0401,
    author       = "S. Christiansen",
    title        = "The radiation pattern for a linear antenna array determined using
interval arithmetic. Course 02611: Optimization and Data Fitting.",
    year         = "2001",
    month        = "nov",
    edition      = "1",
    pages        = "4",
    publisher    = "Informatics and
Mathematical Modelling, Technical University of Denmark.",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/401-full.html"
}