@article{28779,
      author       = "Chrzanowski, Adam and Janssen, Hans-Dirk and Kurz, Bernd
                      and International Course Lasers in Surveying and
                      Construction, Stockholm 1973",
      title        = "Self Aligning Laser Detector - New Tool in Surveying  ",
      year         = "1973",
      note         = "Obr. v textu, 1 sv.",
}