@misc{indiciaef58d6e95ef81,
  title = {Terrain-analysis procedures for modeling radar backscatter},
  author = {Schaber, G. G. and Berlin, G. L. and Pike, R. J.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810001972},
  note = {Source identifier: 19810001972}
}