@article{1386,
      author       = "Haug, G. and XIII. Congress of the International Society
                      for Photogrammetry, Helsinki, 1976",
      title        = "Analysis and Reduction of the Systematic Image and Model
                      Deformations of the Aerial Triangulation Test "Oberschwaben"
                       ",
      year         = "1976",
      note         = "1 sv.",
}