@article{12674,
      author       = "Schwarz, K. P. and Polish Academy of Sciences and
                      International Symposium on Satellite Geodesy Budapest, 28.6
                      - 1.7. 1977",
      title        = "Improvement of the geoid in local areas by satellite
                      gradiometry  ",
      year         = "1977",
      note         = "1 sv.",
}