| |||
| Ausbreitungsräume | |||
|
propagation spaces : 4 phrases in 4 subjects |
| Communications | 1 |
| Optics branch of physics | 1 |
| Radio | 1 |
| Technology | 1 |
| |||
| Ausbreitungsräume | |||
|
propagation spaces : 4 phrases in 4 subjects |
| Communications | 1 |
| Optics branch of physics | 1 |
| Radio | 1 |
| Technology | 1 |