@article{21633,
      author       = "Bambaldokov, Nikola and VIII. International Cartographic
                      Conference and VIII. Meždunarodnaja Kartografičeskaja
                      Konferencija and VIII. Conférence Cartographique
                      Internationale",
      title        = "Optimum Amount of Information on Geographical Schooo
                      Wall-Maps",
      year         = "1976",
      note         = "separát, 1 sešit",
}