Testing the three-dimensional IRI-SIRMUP-P mapping of the ionosphere for disturbed periods
A comparative sporadic-E layer study between two mid-latitude ionospheric stations
NmF2 trends at low and mid latitudes for the recent solar minima and comparison with IRI-2012 model
Local changes in the total electron content immediately before the 2009 Abruzzo earthquake
Fading in the HF ionospheric channel and the role of irregularities