@article{12116,
      author       = "20th General Assembly of the IUGG, 11 - 24 August 1991,
                      Viena",
      title        = "Guide to the Exhibition Stand. 20th General Assembly of the
                      IUGG, 11 - 24 August 1991, Vienna  ",
      year         = "1991",
      note         = "Liter. - Obr. a tab. v textu",
}