@article{37947,
      author       = "Wieczorek, Ulrich and XIII. Congress of the International
                      Society for Photogrammetry. Helsinki, July 11 to 23, 1976",
      title        = "Wattkartierung aus dem Luftbild mit Hilfe einer
                      rorationsinvarianten quantitativen Texturanalyse  ",
      year         = "1976",
      note         = "Název též v angl. a franc.,separát",
}