@misc{indiciae167c12e57c86,
  title = {The U. S. Geological Survey, Digital Spectral Library: Version 1 (0.2 to 3.0um)},
  author = {Roger N. Clark and Gregg A. Swayze and Andrea J. Gallagher and Trude King and Wendy M. Calvin},
  year = {1993},
  doi = {10.3133/ofr93592},
  url = {https://pubs.usgs.gov/publication/ofr93592},
  note = {Source identifier: ofr93592}
}