@article{509,
      author       = "Depuydt, F. and 9. mezinárodní konf. kart., Rockville,
                      Md. 1978",
      title        = "A Sunoptic Cartograpfic Method to Classify the Indications
                      for Use of Natural Landscapes  ",
      year         = "1978",
      note         = "separáty, 1 seš.",
}