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  2. Ionospheric data in Japan
  3. CANADIAN IONOSPHERIC DATA
  4. IONOSPHERIC DATA NEW ZEALAND
  5. Catalogue of ionospheric data, WDC-C2
  6. Annual report - Ionospheric Prediction Service
  7. UPPSALA IONOSPHERIC OBSERVATORY ADMINISTRATIVE REPORTS
  8. Ionospheric data at Syowa Station (Antarctica)
  9. Predictions
  10. Prédictions