@article{31035,
      author       = "Kukkamäki, T. J. and COSPAR - 15th Plenary Meeting, May
                      10-24, 1972, Madrid. W.G.1: paper a 8",
      title        = "Stellar Triangulation Measured with Balloon-Borne Beacons,
                      its Scale and Position  ",
      year         = "1972",
      note         = "1 seš.",
}