@article{2795,
      author       = "Poutanen, Markku and Zdunek, Riszard and 20th General
                      Assembly of the IUGG, 11 - 24 August 1991, Vienna",
      title        = "Baltic Sea Level Project - 1. GPS Campaign Preliminary
                      Results of Subnet Reductions  ",
      year         = "1991",
      note         = "Liter. - Obr. a tab. v textu",
}