@article{4556,
      author       = "Sigl, Rudolf and IAG and Presented to the Internat. Assoc.
                      of Geodesy on the Occasion of the XVIII IUGG General
                      Assembly, August 15. - 27. 1983, Hamburg/FRG",
      title        = "Continental Networks. Report on the Activities of the IAG -
                      Commission X 1979 to 1983  ",
      year         = "1984",
      note         = "1 sv., mapky v textu",
}