@article{7037,
      author       = "Zuylen, Ir. L. van and Presented to ICA Commission III (
                      Automation ) - Budapest, 19 - 26 August 1973",
      title        = "Digitizing of Orthofotographs for Meedium and Small Scale
                      Mapping  ",
      year         = "1973",
      note         = "Obr. v textu, 1 sv., separáty",
}