@misc{indiciae7ca573efa450,
  title = {Imaging Ionospheric Fine Structures Using Polarimetric SAR and GPS},
  author = {Pi, Xiaoqing and Freeman, Anthony and Chapman, Bruce},
  year = {2009},
  url = {https://ntrs.nasa.gov/citations/20150011930},
  note = {Source identifier: 20150011930}
}