| 1 | ||
| Researcher: | Sarkar, Bijay Krishna | |
| Guide: | De, S S | |
| University: | University of Calcutta | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Sriram, P | |
| University: | Andhra University | |
| Language: | English | |
| 3 | Studies on wave movements in the ionosphere using phase path Technique  | |
| Researcher: | Madhusudana Rao, B | |
| University: | Andhra University | |
| Language: | English | |