 |
| |||
| Appleton-Schicht f | |||
| A0-Horizont m | |||
| F-Schicht f | |||
| F-Region f | |||
|
F-layer : 4 phrases, 2 sujets |
| Communications | 3 |
| Électronique | 1 |
|
| |||
| Appleton-Schicht f | |||
| A0-Horizont m | |||
| F-Schicht f | |||
| F-Region f | |||
|
F-layer : 4 phrases, 2 sujets |
| Communications | 3 |
| Électronique | 1 |