@article{20710,
      author       = "Hobbie, D. and XIII. Congress of the International Society
                      for Photogrammetry, Helsinki, 1976. Commission II",
      title        = "Numerical Orientation in the SEG-5 with the Aid of the
                      ZEISS OCS-1 Orientation System  ",
      year         = "1976",
      note         = "1 sv.",
}