Classification
EXA - Energy policy
EHA - Renewable energy sources
8
EVN - Energy supply - future aspects
4
UEF - Sustainability
3
EVP - Energy models, energy system analysis
2
EBA - Energy production, energy technology
1
EUD - Energy consumption
1
EVA - Energy demand, energy supply - comprehensive works
1
EVB - Energy supply of Germany
1
EWA - Energy economy
1
UEA - Environmental policy and economy - general aspects
1
UED - Environmental policy
1
UKA - Environmental damage and energy production
1
YPB - Economy - general aspects
1
YRD - Technology assessment
1