@article{1965,
      author       = "Főrstner, Rudolf and Ninth International Congress of
                      Photogrammetry, London 1960",
      title        = "Approximation Method of Block Adjustment in Aerial
                      Triangulation with Special Regard to the Bridging of
                      Adjacent Strips  ",
      year         = "1960",
      note         = "1 sv., Paper presented to Commission III",
}