@article{11251,
      author       = "Múgica, F. and Courel, J.M.G. and Herrero, R. and Spain 
                      and 9. mezinárodní konf. kart., Rockville, Md.1978",
      title        = "Geographic Information System of the Instituto Geografico
                      Nacional  ",
      year         = "1978",
      note         = "separáty, 1 seš.",
}