@misc{indiciae48bb0bb73104,
  title = {Passive lunar seismic experiment},
  author = {Ewing, M. and Kovach, R. and Press, F. and Sutton, G. H.},
  year = {1964},
  url = {https://ntrs.nasa.gov/citations/19660009381},
  note = {Source identifier: 19660009381}
}