@article{17091,
      author       = "Pravda, Ján and SAV - GÚ Centr. geoved. výsk. Bratislava
                      and Konference - Morelia - October 1987",
      title        = "Map - a means of thinking and expression.  Paradigms of
                      cartographic theory: comparative studies  ",
      year         = "1987",
      note         = "5 obr. - Liter., 1 sv.",
}