@misc{indiciaec2a7319b70ec,
  title = {Lunar surface mechanical properties},
  author = {Batterson, S. A. and Benson, H. E. and Choate, R. and Christensen, E. M. and Hutton, R. E. and Jaffe, L. D. and Jones, R. H. and Ko, H. Y. and Schmidt, F. N. and Scott, R. F. and Spencer, R. L. and Sutton, G. H.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680008379},
  note = {Source identifier: 19680008379}
}