@ARTICLE\{IMM1990-03698,
    author       = "V. V. Vidal and J. M. Christensen",
    title        = "Project evaluation for energy supply in rural areas of developing countries",
    year         = "1990",
    keywords     = "Project planning, energy, developing countries",
    pages        = "230-246",
    journal      = "European Journal of Operational Research",
    volume       = "40",
    editor       = "",
    number       = "2",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3698-full.html"
}