@article{27314,
      author       = "Andersen, Einar and Twelfth General Assembly of the
                      International Geodetic and Geophysical Union held in 1960 in
                      Helsinki",
      title        = "Report on Triangulation and Base Measurements 1957 - 1959 
                      ",
      year         = "1960",
      note         = "1 sv., 1 sv., 1 vol. příl., Denmark Geodetic Institute",
}