@article{18083,
      author       = "Forsberg, Rene and Geod. Inst. Charlottenlund and 19. IUGG
                      - Vancouver, Aug. 9-22, 1987",
      title        = "Methods to extract gravity information from inertial data 
                      ",
      year         = "1987",
      note         = "Liter. - 3 obr., 1 sv.",
}