@article{29798,
      author       = "Nakagawa, Ichiro and IUGG - IAG, 15th General Assembly
                      Moscow, 1 - 14 August 1971",
      title        = "Some remarks on gravity measurements by means of
                      gravimeters. Working Group for Gravity Surv. and Precise
                      Levelling in Japan  ",
      year         = "1971",
      note         = "1 sv.",
}