@article{2497,
      author       = "Gerencsér, Miklós G. and XIII. Congress of the
                      International Society for Photogrammetry, Helsinki, 1976.
                      Commission I",
      title        = "Automated Edge Gradient Analyse (EGA) for Testing
                      Photogrammetric Systems  ",
      year         = "1976",
      note         = "Obr. v textu, 1 sv.",
}