@article{9456,
      author       = "Kasper, H. and XIII. Congress of the International Society
                      for Photogrammetry, Helsinki, 1976. Commission IV",
      title        = "Flugaufnahmen aus Helikoptern zur Feststellung von
                      Strassenschaeden  ",
      year         = "1976",
      note         = "1 sv.",
}