@article{69,
      author       = "3rd International Symposium Geodesy and Physics of the
                      Earth. GDR Waimar, October 25th - 31st, 1976",
      title        = "3rd International Symposium Geodesy and Physics of the
                      Earth. GDR Weimar, October 25th - 31st, 1976. Proceedings
                      Part 2  ",
      year         = "1977",
      note         = "3x 1 sv.",
}