@article{22539,
      author       = "Nakajima, Iwao and X. kongres Mezinárodní
                      fotogrammetrické společnosti v Lisabonu 1964",
      title        = "Photo Densit Measurement of Some Forest Types  ",
      year         = "1964",
      note         = "1 seš., Reprinted from the Journal of the Japan Society of
                      Photogrammetry, Special Volume No. 1, June, 1964, S. 35 -
                      42",
}