@article{417,
      author       = "Jonason, Carl-Olov and Massarsch, R. and XIII. Congress of
                      the International Society for Photogrammetry, Helsinki,
                      1976",
      title        = "A Photogrammetric Study of Soil Displacement During Piling
                      in a Model Test  ",
      year         = "1976",
      note         = "1 seš.",
}