@article{17576,
      author       = "Freeden, W. and Grafarend, E. W. and Neunzert, H. and
                      Mathematical-geodetic methods Workshop, Lambrecht, 1992",
      title        = "Mathematical geodetic methods for the determination of
                      geoid and topography  ",
      year         = "1992",
      note         = "Abstr. - 1 sv.",
}