@TECHREPORT\{IMM2002-0909,
    author       = "P. Knudsen and A. A. Nielsen and K. B. Hilger and et al.",
    title        = "Geoid and Sea Level of the North Atlantic Region (GEOSONAR)",
    year         = "2002",
    number       = "",
    series       = "Technical University of Denmark",
    institution  = "",
    address      = "Richard Petersens Plads, Building 321",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/909-full.html"
}