@misc{indiciaeaaa8aaa90f68,
  title = {Estimating Los Angeles degradation value using the Schmidt rebound hammer along the Front Range, Colorado},
  author = {J.C. Davenport and W. H. Langer},
  year = {1998},
  doi = {10.3133/ofr98331},
  url = {https://pubs.usgs.gov/publication/ofr98331},
  note = {Source identifier: ofr98331}
}