@article{1918,
      author       = "Bilski, Edmund and 13. valné shromáždění MUGG Berkeley
                      1963",
      title        = "Application of potential disturbance to investigation of
                      deep parts of the Earth Crust  ",
      year         = "1963",
      note         = "Polish Academy of Sciences, Committee of Geod. and
                      Institute of Higher geodesy at Warsaw Politechnic. - 1.4.
                      1964. - 1 sv.",
}