@misc{indiciae92050e8e73b1,
  title = {Equipment and techniques for low-altitude aerial sensing of water-vapor concentration and movement},
  author = {R.L. Howell},
  year = {1969},
  doi = {10.1016/s0034-4257(69)90044-3},
  url = {https://pubs.usgs.gov/publication/70011528},
  note = {Source identifier: 70011528}
}