@article{803,
      author       = "Colombo, Oscar L. and Inter.Summer School on Satellite
                      Geodesy. Assisi, Italy, May 23 - June 03 1988",
      title        = "Advanced techniques for high-resolution mapping of the
                      gravitational field. Second lecture on gravity gradiometers:
                      global data analysis  ",
      year         = "1988",
      note         = "2. obr. - Liter.",
}