@misc{indiciae51fc1c911c28,
  title = {Field investigation of the drift shadow},
  author = {G.W. Su and T.J. Kneafsey and T.A. Ghezzehei and P.J. Cook and B.D. Marshall},
  year = {2006},
  url = {https://pubs.usgs.gov/publication/70028707},
  note = {Source identifier: 70028707}
}