Classification
YEA - Environmental law
107
UED - Environmental policy
16
YEM - Energy law
12
YED - Law on clean air
9
YEN - Atomic energy law
5
UMV - Climatic change
4
YMA - International law
4
UCEA - Environmental impact
3
YBB - Law - general
3
PKA - Elementary particles, nuclei - general
2
UAN - Environment - mathematical methods, computer applications
2
UCA - Environmental problems, man and environment - general aspects
2
UCE - Environmental impact, environmental pollution
2
UCJ - Environmental protection - general aspects
2
UNA - Noise pollution
2
UPT - Water pollution control and measurement
2
USG - Waste treatment, waste disposal
2
YDS - Building law
2
YFA - Labour legislation
2
AHA - Research and development, research politics - general
1
AHC - Research and development, research politics - Germany
1
CHRV - Water and its properties
1
CWGH - Chemical plants - development, optimization, process control
1
CWKC - Chemical reaction engineering
1
EBA - Energy production, energy technology
1
GTA - Hydrology - general
1
GXAA - Polar research - arctic region
1
HYB - Public health, health politics
1
LCD - Ecology - comprensive works
1
LTE - Biotechnology - general aspects
1
LWH - Agriculture - soil sciences
1
UA - Environment - general
1
UAU - Fire, fire protection, safety at the workplace, prevention of accidents
1
UCG - Control of environmental pollution
1
UEN - Environmental economy
1
UHC - Area planning and environment
1
UKH - Environment and power plants, industrial plants
1
UMK - Air pollution - general aspects
1
UMN - Air pollution control and measurement
1
UPC - Water - general aspects
1
UPCE - Water chemistry
1
UPK - Water resources, water supply
1
UPN - Water protection, water quality, clean water
1
UPVC - Groundwater
1
URA - Soil chemistry
1
USDN - Hazardous waste - incl. waste oil
1
UXK - Radiation protection - comprehensive works
1
YAA - Law, economy, social affairs - reference books
1
YDA - Administrative law
1
YDZ - Data protection law
1
more ...