kalsium
68TEOLLISUUS- MT
6816metallurgia ja terästeollisuus - BT1 muu metalli kuin rautametalli
- BT2 metalli
Mapping
- EXM agrovoc: Agrovoc (FAO - Food and Agriculture Organization)
- EXM gemet: GEMET (GEneral Multilingual Environmental Thesaurus - EEA)
- EXM unesco: UNESCO (United Nations Educational, Scientific and Cultural Organization)
Finnish)