@ARTICLE\{IMM2003-02966,
    author       = "L. A. F. Nilsson and U. H. Thygesen and B. Lundgren and B. F. Nielsen and J. R. Nielsen and J. E. Beyer",
    title        = "Vertical migration and dispersion of sprat (Sprattus sprattus) and herring (Clupea harengus) schools at dusk in the Baltic Sea",
    year         = "2003",
    pages        = "317-324",
    journal      = "Aquatic Living Resources",
    volume       = "16",
    editor       = "",
    number       = "3",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2966-full.html"
}