@misc{indiciaeec2206aca735,
  title = {Improved evaluation of optical depth components from Langley plot data},
  author = {Biggar, S. F. and Gellman, D. I. and Slater, P. N.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910027496},
  note = {Source identifier: 19910027496}
}