@article{35058,
      author       = "Cook, A.H. and XIV. Val.shromáždění MUGG, Lucerne,
                      25.9. - 7.10. 1967",
      title        = "Use of observations of artificial satellites in the
                      determination of the gravitational potencial of the Earth  ",
      year         = "1967",
      note         = "1 seš.",
}