Classification
EXA - Energy policy
144
TNA - Nuclear engineering - general
31
UED - Environmental policy
20
UKA - Environmental damage and energy production
20
EWA - Energy economy
19
EVN - Energy supply - future aspects
17
EHA - Renewable energy sources
14
EAD - Energy - comprehensive works
13
EPK - Nuclear energy
13
UMV - Climatic change
12
EVA - Energy demand, energy supply - comprehensive works
9
EVB - Energy supply of Germany
9
EVP - Energy models, energy system analysis
9
UKE - Environment and energy resources
8
EBA - Energy production, energy technology
7
UEA - Environmental policy and economy - general aspects
6
ESB - Hydrogen energy
5
AFK - Research institutions - Germany
4
ENA - Energy from biomass and waste
4
ETC - Energy conversion
4
TKF - Power plants
4
UCA - Environmental problems, man and environment - general aspects
4
UEF - Sustainability
4
UKH - Environment and power plants, industrial plants
4
YEM - Energy law
4
ECA - Energy resources
3
EFA - Petroleum, natural gas
3
UKB - Environmental effects and energy
3
YPO - Economic policy
3
YRA - Social studies
3
YRC - Technology and society
3
EAE - Energy - general
2
EGA - Oil shale, oil sands
2
EIA - Solar energy - general
2
ETA - Energy storage
2
EUC - Energy conservation - civil engineering
2
EUD - Energy consumption
2
EVH - Energy supply - economic growth
2
GWA - Raw material economy, raw material policy
2
PGN - Fusion technology, plasma devices
2
TIG - Reliability, safety, quality control
2
TNB - Nuclear power plants
2
UMB - Atmospheric chemistry
2
YPB - Economy - general aspects
2
YPW - Economy of industry branches
2
YZA - Politics, political science
2
AFW - Subject oriented organizations
1
AHNC - Journalism
1
EAA - Energy - reference books
1
EFN - Petroleum exploration, natural gas exploration
1
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