@article{22600,
      author       = "Ekelund, Lennart and VIII International Congress of
                      Photogrammetry, Stockholm, July 1956",
      title        = "Photogrammetric triangulation with the aid of
                      geoidmetermeasured bases or polygons  ",
      year         = "1956",
      note         = "1 sv., 1 sv.,  Zvl. ot. z čas.:Rikets Allmänna Kartverks
                      Meddelande Nr 27, s. 57 - 65",
}