Rocket and Ground-Based Electron Density Soundings Versus IRI Representation
Spread-F at Anomaly Crest Regions in the Indian and American Longitudes
Comparisons of IRI Model and Electron Density Data for the Sub-Equatorial Station, Natal
The Brazilian scientific satellite
Equatorial Anomaly Effects on GPS Scintillations in Brazil
Global Scale Earth's Upper Atmosphere Monitoring by SACI-1 Micro-Satellite
Occurrence of an Additional Layer in the Ionosphere Over Fortaleza
Permanent Changes in Sporadic E Layers over Fortaleza, Brazil