@misc{indiciaece74abbe0b99,
  title = {Spectral ratio method for measuring emissivity},
  author = {K. Watson},
  year = {1992},
  doi = {10.1016/0034-4257(92)90094-z},
  url = {https://pubs.usgs.gov/publication/70017051},
  note = {Source identifier: 70017051}
}