Auroral Oval Dynamics: Comparison of APEX and DMSP Observations
Ionospheric Dynamics in the Central Polar Cap
On Long-Term Changes of Electron Density in the Upper Mesosphere
The Total Ozone and UV Solar Radiation Over Stara Zagora, Bulgaria
Greenhouse Gases and Recovery of the Earth's Ozone Layer
Middle Atmosphere Summer Duration as an Indicator of Long-Term Circulation Changes
Progress in Trend Studies: Highlights of the TREND2004 Workshop
Long-Term Trends in F2-Layer Parameters and Their Relation to Other Trends
Gravity Wave Activity in the Lower Ionosphere and in the F2 Region - Similarities and Differences
Numerical Modelling of the Thermosphere-Ionosphere Coupling During Substorm
Similarities in the Variability of the Lower Ionosphere and foF2 in the Period Range of 2-15 Days
Es-Reflections in the Region of the Main Ionospheric Trough
Influence of Collisional Heating on the Current Generation in Moving Mid-Latitude Sporadic E-Layers