5 citations as recorded by crossref.

1. Review of Environmental Monitoring by Means of Radio Waves in the Polar Regions: From Atmosphere to Geospace L. Alfonsi et al. https://doi.org/10.1007/s10712-022-09734-z
2. Global pattern of trends in the upper atmosphere and ionosphere: Recent progress J. Laštovička https://doi.org/10.1016/j.jastp.2009.01.010
3. Trends in the Neutral and Ionized Upper Atmosphere J. Laštovička et al. https://doi.org/10.1007/s11214-011-9799-3
4. Ionosphere variability I: Advances in observational, monitoring and detection capabilities I. Tsagouri et al. https://doi.org/10.1016/j.asr.2023.07.024
5. Remote Sensing and Skywave Digital Communication from Antarctica P. Bergadà et al. https://doi.org/10.3390/s91210136