@CONFERENCE\{IMM1993-03767,
    author       = "V. V. Vidal",
    title        = "The afforestation problem: outline of a decision support system",
    year         = "1993",
    pages        = "10-13",
    booktitle    = "International Symposium on System Analysis and Management decisions in Forestry, Valdivia, Chile",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3767-full.html"
}