@article{38030,
      author       = "Frey, U. and XIII. Congress of the International Society
                      for Photogrammetry, Helsinki, 1976. Commission II",
      title        = "Wild Aviotab TA - An Electronically Controlled Plotting
                      Table  ",
      year         = "1976",
      note         = "Obr. v textu, 1 sv.",
}