@article{22552,
      author       = "XIII. Congress of the International Society for
                      Photogrammetry, Helsinki, 1976. Commission I, II, IV, VI and
                      VII",
      title        = "Photogrammetric Activities at the National Land Survey of
                      Sweden  ",
      year         = "1976",
      note         = "Rapport fran LMV. Nr. 2. 1976. - Obr. a tab. v textu, 2x1
                      sv.",
}