@misc{indiciae1ae986599a9a,
  title = {The GEM-T2 gravitational model},
  author = {Marsh, J. G. and Lerch, F. J. and Putney, B. H. and Felsentreger, T. L. and Sanchez, B. V. and Klosko, S. M. and Patel, G. B. and Robbins, J. W. and Williamson, R. G. and Engelis, T. E.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900003668},
  note = {Source identifier: 19900003668}
}