@misc{indiciae511006a4e477,
  title = {Combined spectral and spatial processing of ERTS imagery data},
  author = {Shanmugam, K. and Haralick, R. M.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730008676},
  note = {Source identifier: 19730008676}
}