Diagnostics of plasma in the ionospheric D-region: detection and study of different ionospheric disturbance typesAleksandra Nina, Vladimir A. Srécković, Luka Č. Popović et al.|The European Physical Journal D|2017Cited by 23
The extremes of AGN variability: Outbursts, deep fades, changing looks, exceptional spectral states, and semi-periodicitiesS. Komossa, F. Iacob, D. Grupe et al.|Advances in Space Research|2025Cited by 9