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| Noorse spar (Picea Dietr.spec.); Spar m (Picea Dietr.spec.) | |||
| gewone spar (Picea abies, Picea excelsa); fijnspar m (Picea abies, Picea excelsa) | |||
| picea: 37 phrases, 4 sujets |
| Environnement | 3 |
| Ressources naturelles et conservation de la faune | 2 |
| Sciences naturelles | 12 |
| Sylviculture | 20 |