@article{4307,
      author       = "Sigl, Rudolf and XIVth General Assembly of IUGG 1967",
      title        = "Comparasion in Space for Heights of Mean Sea Level,
                      Determination of Secular Movements between Land and
                      Sea./Activity of the Special Study Group No.22, Linked to
                      Section II. of International Association of Geodesy
                      1963-1967/.  ",
      year         = "1967",
      note         = "1 brož.",
}