@article{82,
      author       = "4th International Symposium Geodesy and Physics of the
                      Earth GDR. Karl - Marx - Stadt, May 12th - 17th, 1980",
      title        = "4th International Symposium Geodesy and Physics of the
                      Earth GDR. Karl - Marx - Stadt, May 12th - 17th, 1980.
                      Proceedings. Part I  ",
      year         = "1981",
      note         = "1 sv., obr. a tb. v textu. - Liter.",
}