@article{35570,
      author       = "Nastula, J. and Space Research Centre of Polish Academy of
                      Sciences Warszawa and 19. IUGG - Vancouver, Aug. 9-22, 1987",
      title        = "Variations of pole motion velocity in the last few years
                      and their geophysical interpretation  ",
      year         = "1987",
      note         = "1 tab. v textu. - Liter. - Obr. příl., 1 sv.",
}