@ARTICLE\{IMM1980-03676,
    author       = "V. V. Vidal and D. de Werra and E. Silver",
    title        = "A Tutorial on Heuristic Methods",
    year         = "1980",
    keywords     = "heuristics, optimization, classification",
    pages        = "153-162",
    journal      = "European Journal of Operational Research",
    volume       = "5",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3676-full.html"
}