Classification
GWCD - Ore mining, ore processing
3
CWSH - Extraction
2
CBR - Inorganic synthesis and reactions of metals and their compounds
1
CXUB - Inorganic products
1
EBA - Energy production, energy technology
1
GWA - Raw material economy, raw material policy
1
GWB - Raw materials - metals, nonmetals
1
GWBA - Raw material resources, raw material reserves
1
GWBB - Raw material supply, raw material demand
1
GWC - Ore deposits
1
UXAL - Radioisotopes in soil and groundwater
1