@ARTICLE\{IMM1987-03685,
    author       = "V. V. Vidal and J. S. Ferreira",
    title        = "A new algorithm for the economic lot-size problem",
    year         = "1987",
    keywords     = "lot-size, optimization, linear model",
    pages        = "87-98",
    journal      = "Control and Cybernetics",
    volume       = "16",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3685-full.html"
}