Classification
EVN - Energy supply - future aspects
210
EXA - Energy policy
27
ECA - Energy resources
23
EVA - Energy demand, energy supply - comprehensive works
12
EHA - Renewable energy sources
9
EVP - Energy models, energy system analysis
8
EWA - Energy economy
7
EVB - Energy supply of Germany
6
EPK - Nuclear energy
5
UKB - Environmental effects and energy
4
EUD - Energy consumption
3
EVH - Energy supply - economic growth
3
TEA - Electrical engineering - general
3
TED - Electric power - industrial aspect
3
TEDD - Electric power transmission
3
UEF - Sustainability
3
EAD - Energy - comprehensive works
2
EBA - Energy production, energy technology
2
ETC - Energy conversion
2
UHCH - Urban areas
2
CXA - Coal and fossil fuel - chemistry and technology
1
CXR - Natural gas and petroleum - chemistry and technology
1
EAE - Energy - general
1
EEA - Coal - general
1
EFN - Petroleum exploration, natural gas exploration
1
EIA - Solar energy - general
1
EIP - Photovoltaics
1
ENA - Energy from biomass and waste
1
EPA - Uranium - nuclear fuel
1
ETF - Fuel cells - general
1
TNB - Nuclear power plants
1
UKE - Environment and energy resources
1
UXV - Radioactive waste disposal - interim and final
1
YEM - Energy law
1
YPO - Economic policy
1
YRA - Social studies
1
YRC - Technology and society
1