@misc{indiciae302f223ab2bd,
  title = {Distribution of Lunar craters according to morphology from Ranger VIII and IX photographs},
  author = {N.J. Trask},
  year = {1967},
  doi = {10.1016/0019-1035(67)90023-1},
  url = {https://pubs.usgs.gov/publication/70010515},
  note = {Source identifier: 70010515}
}