| 1 | ||
| Researcher: | Biswas, Dilip Kumar | |
| Guide: | Das, T M | |
| University: | University of Calcutta | |
| Language: | English | |
| Shodhganga | ||
| 2 | Some studies on ionospheric electron content and electron density irregularities at low latitudes | |
| Researcher: | Das, Sukomal Kanti | |
| University: | University of Calcutta | |
| Language: | English | |