@article{703,
      author       = "Yokoyama, K. and Internat.Polar Motion Service and 19. IUGG
                      - Vancouver, Aug. 9-22, 1987",
      title        = "Activity Report of the International Polar Motion Service
                      for the Period from 1985 through 1987  ",
      year         = "1987",
      note         = "Liter., 1 sv.",
}