@article{4407,
      author       = "Gurtner, W. and Elmiger, A. and XVIII General Assembly
                      IUGG, Hamburg 1983",
      title        = "Computation of Geoidal Heights and Vertical Deflections in
                      Switzerland. XVIII General Assembly IUGG, Hamburg 1983  ",
      year         = "1983",
      note         = "Obr. a mapky v textu., 1 sv.",
}