@article{19544,
      author       = "Kiviniemi, Aimo and IUGG XX General Assembly IAG, Vienna,
                      August 11-24, 1991",
      title        = "National Report on Gravimetry in Finland, 1987 - 1990. The
                      20 General Assembly of the IUGG. Vienna, August 1991  ",
      year         = "1991",
      note         = "Liter. - Tab. v textu",
}