@ARTICLE\{IMM2000-03737,
    author       = "V. V. Vidal and P. M. Borges and L. S{\o}rensen",
    title        = "{OR} approaches for strategy development and planning: an introduction",
    year         = "2000",
    keywords     = "planning, strategy, soft methods",
    journal      = "Investigacao Operational (Portugal)",
    volume       = "20",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3737-full.html"
}