@article{33205,
      author       = "Jordan, James F. and XV Plenary Meeting of COSPAR, May
                      10-24, 1972, Madrid, Spain",
      title        = "Testing Relativistic Gravity Theories Using Radio Tracking
                      Data from Planetary Orbiting Spacecraft  ",
      year         = "1972",
      note         = "1 seš., Presented at the, Paper",
}