| 1 | Application of phase comparison principle to three phase distance relay |
| 2 | |
| Language: | English |
| 3 | On the generation of discontinuous oscillations and some applications |
| 4 | Semi-conducting materials as detector of ultra-micro and optixcal waves |
| Language: | English |
| 5 | |
| 6 | |
| Language: | English |
| 7 |