 |
| |||
| Schutzstellung f (Александр Рыжов) | |||
| положение защиты: 30 phrases in 12 subjects |
| Construction | 1 |
| General | 5 |
| Hydrology | 1 |
| Law | 10 |
| Medical | 1 |
| Nautical | 1 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 6 |
| Production | 1 |
| Security systems | 1 |
| Sports | 1 |
| Water supply | 1 |
|
| |||
| Schutzstellung f (Александр Рыжов) | |||
| положение защиты: 30 phrases in 12 subjects |
| Construction | 1 |
| General | 5 |
| Hydrology | 1 |
| Law | 10 |
| Medical | 1 |
| Nautical | 1 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 6 |
| Production | 1 |
| Security systems | 1 |
| Sports | 1 |
| Water supply | 1 |