@article{492,
      author       = "Tziavos, I.N. and Sideris, M.G. and Schwarz, K.P.",
      title        = "A Study of Contributions of Various Gravimetric Data Types
                      on the Estimation of Gravity Field Parameters in the
                      Mountains  ",
      year         = "1992",
      note         = "J. geophys. Res., 97, 1992, No. B6.",
}