@misc{indiciae4850fe909ac0,
  title = {Topside Equatorial Ionospheric Density and Composition During and After Extreme Solar Minimum},
  author = {Klenzing, J. and Simoes, F. and Ivanov, S. and Heelis, R. A. and Bilitza, D. and Pfaff, R. and Rowland, D.},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20120012016},
  note = {Source identifier: 20120012016}
}