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