@article{2509,
      author       = "Deguil, Jean Louis and Rybicki, Krzysztof and ICA The 11th
                      International Cartographic Conference, Warszaw (Poland) July
                      29 - August 4, 1982",
      title        = "Automatic Digitisation of Line Drawings a System Developed
                      in Spain  ",
      year         = "1982",
      note         = "1 sv., 1 obr.",
}