@ARTICLE\{IMM2006-05110,
    author       = "M. N. Nielsen and B. Hove and J. Clausen",
    title        = "Constructing Periodic Timetables using {MIP} - a case study from {DSB} {S-}train",
    year         = "2006",
    pages        = "213 - 227",
    journal      = "International Journal of Operations Research",
    volume       = "1",
    editor       = "",
    number       = "3",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/5110-full.html"
}