@article{22384,
      author       = "Kupfer, Günter and XIII. Kongress der Internationalen
                      Gesellschaft für Photogrammetrie, Helsinki 1976. Kommission
                      I",
      title        = "Partial Calibration of Photogrammetric Systems Including
                      Reseau Cameras Using a Flat Test Area  ",
      year         = "1976",
      note         = "1 sv.",
}