Classification
AEG - Official corporations - Germany
2
CT - Chemical methods of materials analysis
2
CUKF - X-ray fluorescence analysis
1
CWE - Chemical engineering, chemical industry - general
1
DYA - Artificial intelligence
2
EBA - Energy production, energy technology
1
EPK - Nuclear energy
1
ETC - Energy conversion
1
EUA - Energy conservation - general
2
FHJ - Scanning electron microscopy, analytical electron microscopy
1
GBA - General geology, historical geology
2
GCAA - Regional geology - Germany
2
GRB - Climatology
1
GRBA - Climatology - general
2
GUA - Geography - general
1
HYE - Environmental health
3
LCK - Ecology - general aspects
3
LCM - Terrestrial ecology
1
LCP - Limnology
1
LCV - Ecology - models
1
LES - Plant physiology - methods
1
LMN - Molecular biophysics, biophysical chemistry
1
LTD - Biotechnology - comprehensive works
2
LTO - Biotechnology - application, industry
1
LTU - Genetic engineering
2
LVH - Food science - technologies
1
LWE - Agriculture - general aspects
1
LWF - Agriculture - methods
1
LWH - Agriculture - soil sciences
1
LWO - Agricultural ecology, sustainable agriculture
1
LWP - Agriculture - animal husbandry
1
LWV - Agriculture - plant protection
6
LWVC - Plant protection
1
TCQ - Process control computers, multiprocessors
1
THA - Mechanical engineering - general
1
THH - Machines
1
TKB - Civil engineering - buildings
1
UAA - Environment - reference books
1
UAD - Environment - comprehensive works
6
UAN - Environment - mathematical methods, computer applications
1
UCA - Environmental problems, man and environment - general aspects
14
UCE - Environmental impact, environmental pollution
9
UCEA - Environmental impact
2
UCEB - Environmental pollution
2
UCG - Control of environmental pollution
7
UCJ - Environmental protection - general aspects
160
UCL - Environmental research
10
UCN - Environmental education
5
UCQ - Environmental technology
1
UCS - Environmental chemistry
1
more ...