@misc{indiciae9de6cf59748e,
  title = {Meteoroid penetration detector development program, volume 1 Final summary report},
  author = {Del Gray, R. O. M. and Mc Cord, R. L. and Russak, S. L.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690030651},
  note = {Source identifier: 19690030651}
}