@article{2519,
      author       = "Blachut, J. T. and Helava, V. U. and Report to the IXth
                      International Congress of Photogrammetry - London 1960",
      title        = "Automatic stereoplotting in small- and large- scale mapping
                       ",
      year         = "1960",
      note         = "National Research Council of Canada. Division of Applied
                      Physics., 1 sv., 1 sv.",
}