@misc{indiciaebda64716b825,
  title = {A synoptic description of coal basins via image processing},
  author = {Farrell, K. W., Jr. and Wherry, D. B.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790005303},
  note = {Source identifier: 19790005303}
}