@misc{indiciaebf6d28903c1e,
  title = {Impact cratering mechanics and structures},
  author = {Gault, D. E. and Oberbeck, V. R. and Quaide, W. L.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19700038233},
  note = {Source identifier: 19700038233}
}