@article{PB-3CE42E77A06659431D3B,
  title = {The Polarization Lidar Technique for Cloud Research: A Review and Current Assessment},
  author = {Kenneth Sassen},
  journal = {Bulletin of the American Meteorological Society},
  year = {1991},
  doi = {10.1175/1520-0477(1991)072<1848:tpltfc>2.0.co;2}
}