Classification
EXA - Energy policy
EVA - Energy demand, energy supply - comprehensive works
24
EVH - Energy supply - economic growth
17
EVN - Energy supply - future aspects
7
EVP - Energy models, energy system analysis
3
EAD - Energy - comprehensive works
2
EHA - Renewable energy sources
2
UEF - Sustainability
2
EAE - Energy - general
1
EBA - Energy production, energy technology
1
EVN - EnEVH - Energy supply - economic growth
1
UED - Environmental policy
1
UKA - Environmental damage and energy production
1
UKE - Environment and energy resources
1
YZA - Politics, political science
1