Ozon
52UMWELT- MT
5211Natürliche Umgebung - BT1 Atmosphäre
- BT2 natürliche Umwelt
- RT Verunreinigung der Stratosphäre (
5216)
Mapping
- EXM agrovoc: Agrovoc (FAO - Food and Agriculture Organization)
- EXM gemet: GEMET (GEneral Multilingual Environmental Thesaurus - EEA)
- EXM unbis: Unbis (United Nations Thesaurus)
- EXM unbis: Unbis (United Nations Thesaurus)
- EXM unesco: UNESCO (United Nations Educational, Scientific and Cultural Organization)
German)