Classification
UED - Environmental policy
24
UEN - Environmental economy
9
UAD - Environment - comprehensive works
8
UCL - Environmental research
5
UAN - Environment - mathematical methods, computer applications
4
UCJ - Environmental protection - general aspects
4
UEA - Environmental policy and economy - general aspects
4
UCA - Environmental problems, man and environment - general aspects
3
UCN - Environmental education
3
UCQ - Environmental technology
3
UEF - Sustainability
3
UEND - Environmental costs, environmental investments
3
CWS - Separation processes - nonmechanical
2
FGN - Nanotechnology
2
LTE - Biotechnology - general aspects
2
LWH - Agriculture - soil sciences
2
UCG - Control of environmental pollution
2
UHC - Area planning and environment
2
UHP - Protection of nature and landscape
2
URA - Soil chemistry
2
YPGD - Quality management
2
CWM - Heat transfer, mass transfer - chemical aspects
1
FHAB - Surface and thin film characterization
1
FNPE - Nanostructured materials
1
GBED - Glaciology
1
GDAB - Rock mechanics, soil mechanics
1
GNA - Geology - soil sciences
1
GWA - Raw material economy, raw material policy
1
GWBA - Raw material resources, raw material reserves
1
LCH - Ecology - methods
1
LCN - Ecology - soil sciences
1
LTN - Biotechnology - biodegradation
1
LWO - Agricultural ecology, sustainable agriculture
1
MNLS - Computational methods - algorithms, software
1
MWE - Decision theory, game theory
1
MWH - Statistics
1
UAA - Environment - reference books
1
UAX - Environment - information systems, literature guides
1
UCE - Environmental impact, environmental pollution
1
UCEA - Environmental impact
1
UCEB - Environmental pollution
1
UCS - Environmental chemistry
1
UENG - Cost factors of water pollution and control
1
UENH - Cost factors of air pollution and control
1
UENK - Cost factors of waste management
1
UHCH - Urban areas
1
UHN - Landscape ecology
1
UKE - Environment and energy resources
1
UMG - Technology of clean air
1
UMV - Climatic change
1
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