@misc{indiciae19c5975ffdaf,
  title = {Geology: Physics of fragmental debris},
  author = {E.M. Shoemaker and E. C. Morris},
  year = {1970},
  doi = {10.1016/0019-1035(70)90072-2},
  url = {https://pubs.usgs.gov/publication/70010120},
  note = {Source identifier: 70010120}
}