@article{31181,
      author       = "Atia, Kamal A. and International Association of Geodesy  -
                      Symposium on Electromagnetic Distance Measurement and the
                      Influence of Atmospheric Refraction, Wageningen,
                      Netherlands, 23 - 28  May 1977 and International Association
                      of Geodesy - Symposium on Electromagnetic Distance
                      Measurement and the Influence of Atmospheric Refraction,
                      Wageningen, Netherlands, 23 - 28 May 1977",
      title        = "Strenght of trilateration networks observed in pairs  ",
      year         = "1977",
      note         = "4 obr., lit. 5., 1 seš.",
}