@misc{indiciaefd3cbaaf233d,
  title = {Time evolution of cloud fields from ISCCP observations},
  author = {Campbell, G. G. and Vonder Haar, T. H.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900043114},
  note = {Source identifier: 19900043114}
}