@misc{indiciaed5ac2bd38aba,
  title = {About GSMAP and GSDRAW},
  author = {R. B. Taylor and G.I. Selner},
  year = {1987},
  doi = {10.3133/ofr87496e},
  url = {https://pubs.usgs.gov/publication/ofr87496E},
  note = {Source identifier: ofr87496E}
}