@article{62,
      author       = "Ashkenazi, V. and Grist, S. N. and XVIII General Assembly
                      IUGG, Hamburg 1983",
      title        = "3-D Geodetic Network Adjustment Models: Significance of
                      Different Approaches. XVIII General Assembly IUGG, Hamburg
                      1983  ",
      year         = "1983",
      note         = "Tb. v textu. - Liter., 1 sv.",
}