@ARTICLE\{IMM1983-03679,
    author       = "V. V. Vidal and J. S. Ferreira",
    title        = "Optimizing a Pump-Pipe System",
    year         = "1983",
    keywords     = "engineering, optimization, dynamic programming",
    pages        = "16-30",
    journal      = "Investigacao Operational (Portugal)",
    volume       = "3",
    editor       = "",
    number       = "1",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3679-full.html"
}