@article{11988,
      author       = "Tanner, J. G. and Gibb, R. A. and IUGG - IAG, 15th General
                      Assembly Moscow, 1 - 14 August 1971",
      title        = "Gravity measurements in Canada.Januaary 1, 1967 to december
                      31, 1970. Publications of the earth physics branch. Vol. 42,
                      No. 2  ",
      year         = "1971",
      note         = "1 sv., 1 sv.",
}