@ARTICLE\{IMM1984-03681,
    author       = "V. V. Vidal and J. S. Ferreira",
    title        = "Optimization of a pump-pipe system by dynamic programming",
    year         = "1984",
    keywords     = "optimization, dynamic programming, pump-pipes",
    pages        = "23-33",
    journal      = "Engineering Optimization",
    volume       = "7",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3681-full.html"
}