@misc{indiciaec0115de2ac68,
  title = {Cloud-screening for Africa using a geographically and seasonally variable infrared threshold},
  author = {Eck, T. F. and Kalb, V. L.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910056464},
  note = {Source identifier: 19910056464}
}