@misc{indiciae966e8079e5df,
  title = {Lunar near-surface structure},
  author = {Cooper, M. R. and Kovach, R. L. and Watkins, J. S.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740060876},
  note = {Source identifier: 19740060876}
}