Classification
GHMA - Clay, shale
28
GHM - Sedimentary rocks
3
GNA - Geology - soil sciences
3
GFA - Mineralogy - general
2
GFAC - Specific minerals
2
GFAD - Mineral determination
2
GMK - Geochemistry of elements, minerals, rocks
2
CELC - Organic synthesis
1
CLMH - Catalytic processes of organic compounds
1
CLP - Colloid chemistry, surface chemistry
1
CXUR - Surfactants
1
GBAK - Paleontology
1
GBEU - Weathering
1
GBHC - Ocean floor - sediments, morphology
1
GCAA - Regional geology - Germany
1
GHA - Petrology - general
1
GHHD - Sedimentary transport, sedimentation
1
GHHF - Sedimentary basins
1
GHHM - Diagenesis
1
GMAD - Organic geochemistry
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