Classification
GHMA - Clay, shale
6
CXUR - Surfactants
1
GBAK - Paleontology
1
GBHC - Ocean floor - sediments, morphology
1
GFAC - Specific minerals
1
GNA - Geology - soil sciences
1
GRBA - Climatology - general
1
GWA - Raw material economy, raw material policy
1
GWBA - Raw material resources, raw material reserves
1
USDR - Special solid waste
1
UXW - Underground disposal of radioactive waste
1