@article{19514,
      author       = "IUGG XX General Assembly IAG, Vienna, August 11-24, 1991",
      title        = "National Report of the Federal Republic of Germany on the
                      Geodetic Activities in the years 1987 - 1990  ",
      year         = "1991",
      note         = "Detsche geodätische Kommission bei der Bayerischen
                      Akademie der Wissenschaften. Reihe B, Angewandte Geodäsie,
                      Heft Nr. 294. Obr. a tb. v textu. - Čet. liter.",
}