@article{20718,
      author       = "Svoboda, Antonín and International Symposium of Geodetic
                      Computations, Krakow, 9. - 13. September 1959",
      title        = "The numerical system of residual classes in mathematical
                      machines  ",
      year         = "1959",
      note         = "1 sv., 2 tab., 3 z.",
}