 |
| |||
| classification libre; classification non dirigée | |||
|
unsupervised classification : 2 do fraz, 1 tematyki |
| Ochrona środowiska | 2 |
|
| |||
| classification libre; classification non dirigée | |||
|
unsupervised classification : 2 do fraz, 1 tematyki |
| Ochrona środowiska | 2 |