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| 2 | Some studies on ionospheric electron content and amplitude Scintillations |
| Language: | English |
| 3 | Studies on the performance of optical systems apodised with the butterworth amplitude filters |
| 4 | Studies on D-Region Ionization processes in relation to Long wave amplitude measurements |
| Language: | English |
| 5 | |
| 6 | |
| Language: | English |